least common multiple

  1. math_celebrity

    Find the least common multiple without a calculator

  2. math_celebrity

    Some hot dogs come in packages of 8. Why would a baker of hot dog buns package 7 hot dog buns to a p

    Some hot dogs come in packages of 8. Why would a baker of hot dog buns package 7 hot dog buns to a package For customers that like to have matching hot dogs and buns, consider this scenario. For the first round, you have one extra hot dog. Now you buy a hot dog buns package. You're over 6 buns...
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    What is the Least Common Multipole of 3,4,5?

    What is the Least Common Multipole of 3,4,5? Using our least common multiple calculator, we get: 60
  4. math_celebrity

    2 traffic lights are turned on at the same time. 1 blinks every 4 seconds and. the other blinks ever

    2 traffic lights are turned on at the same time. 1 blinks every 4 seconds and. the other blinks every 6 seconds. In 60 seconds how many times will they blink at the same time? We want the least common multiple of 4 and 6 which is 12. So ever 12 seconds, both lights blink together: 12 24 36 48...
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    A toad croaks every 8seconds and a frog croaks every 6 seconds .They both croak at the same .After h

    A toad croaks every 8seconds and a frog croaks every 6 seconds .They both croak at the same .After how many seconds will they next croak at the same time again. We want the least common multiple of 8 and 6. We type in LCM(6, 8) into our search engine and we get 24
  6. math_celebrity

    Amar goes to the dance class every fourth day. Karan goes to the dance class every fifth day. Both m

    Amar goes to the dance class every fourth day. Karan goes to the dance class every fifth day. Both met at the dance class today. After how many days will they meet at the dance class again? We want the least common multiple of 4 and 5. We type in LCM(4,5) into our search engine and we get 20...
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    A bell rings every 18 seconds, while another bell rings every 60 seconds. At 5:00 pm the two ring si

    A bell rings every 18 seconds, while another bell rings every 60 seconds. At 5:00 pm the two ring simultaneously. At what time will be the bell ring again at the same time. We want the Least Common Multiple of 18 and 60. Using our least common multiple of 18 and 60 is 180 180/18 = 10 (18...
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    An indoor water park has two giant buckets that slowly fill with 1000 gallons of water before dumpin

    An indoor water park has two giant buckets that slowly fill with 1000 gallons of water before dumping it on the people below. One bucket dumps water every 18 minutes. The other bucket dumps water every 21 minutes. It is currently 1:15 P.M. and both buckets dumped water 5 minutes ago. Find the...
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    A comet passes earth every 70 years. another comet passes earth every 75 years of both comets pass e

    A comet passes earth every 70 years. another comet passes earth every 75 years of both comets pass earth this year how many years will it be before they pass on the same year again. We want the least common multiple of (70, 75). Using our LCM calculator, we find the answer is 1,050 years
  10. math_celebrity

    a bell ring every 15 seconds another bell ring 30 seconds.at 3:00 pm the 2 bells ring simultaneously

    a bell ring every 15 seconds another bell ring 30 seconds.at 3:00 pm the 2 bells ring simultaneously.at what time will the bells ring again at the same time The Least Common Multiple (LCM) of 15 and 30 is 30: Therefore, 30 seconds from now, 3:00, is when the 2 bells will ring simultaneously...
  11. math_celebrity

    Ben visits the park every 2 days and goes to the library every 5 days. If Ben gets to do both of the

    Ben visits the park every 2 days and goes to the library every 5 days. If Ben gets to do both of these today, how many days will pass before Ben gets to do them both on the same day again? To find this, we want the least common multiple (LCM) of 2 and 5. We type LCM(2,5) into our search engine...
  12. math_celebrity

    A lighthouse blinks every 12 minutes.A second lighthouse blinks every 10 minutes.If they both blink

    A lighthouse blinks every 12 minutes.A second lighthouse blinks every 10 minutes.If they both blink at 8:10 P.M., at what time will they next blink together? We want to know the least common multiple, so that 12 and 10 intervals meet again. We type in LCM(10,12) into our search engine and we...
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    A company has 12,600 employees. Of these, 1/4 drive alone to work, 1/6 car pool, 1/8 use public tran

    A company has 12,600 employees. Of these, 1/4 drive alone to work, 1/6 car pool, 1/8 use public transportation, 1/9 cycle, and the remainder use other methods of transportation. How many employees use each method of transportation? Find the remainder fraction: Remainder = 1 - (1/4 + 1/6 + 1/8 +...
  14. math_celebrity

    a lighthouse blinks every 12 minutes. A second lighthouse blinks every 10 minutes if they both blink

    a lighthouse blinks every 12 minutes. A second lighthouse blinks every 10 minutes if they both blink at 8:10 P.M at what time will they next blink together We want the least common multiple of (10, 12). This will be the next time each number times a multiple equals the same number. Typing in...
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    A pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) of

    A pair of numbers has an HCF (Highest Common Factor) of 3, and an LCM (Lowest Common Multiple) of 45 . If one of the numbers in the pair is 15 , what is the other number? Prime Factorization for 15 is 3 * 5 Prime Factorization for 9 is 3 * 3 LCM of (9, 15) = 35 Check out this link here to...
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    An air horn goes off every 48 seconds,another every 80 seconds. At 5:00 pm the two go off simultaneo

    An air horn goes off every 48 seconds,another every 80 seconds. At 5:00 pm the two go off simultaneously. At what time will the air horns blow again at the same time? We want to find the least common multiple of (48, 80). So we type this in our search engine, and we get: 240. So 240 seconds is...
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    A light flashes every 2 minutes a, second light flashes every 7 minutes, and a third light flashes e

    A light flashes every 2 minutes a, second light flashes every 7 minutes, and a third light flashes every 8 minutes. If all lights flash together at 8 P.M., what is the next time of day they will all flash together We use our least common multiple calculator to see when the 3 numbers have a...
  18. math_celebrity

    Max sneezes every 5 minutes, Lina coughs every 6 minutes, and their dog barks every 3 minutes. If th

    Max sneezes every 5 minutes, Lina coughs every 6 minutes, and their dog barks every 3 minutes. If there was sneezing, barking, and coughing at 3:15 PM, when is the next time that these three sounds will happen simultaneously? To find the next time the sounds happen simultaneously, we want to...
  19. math_celebrity

    There are two bells in the school. Bell A rings every 2 minutes. Bell B rings every 3 minutes. If bo

    There are two bells in the school. Bell A rings every 2 minutes. Bell B rings every 3 minutes. If both bells ring together at 8.02 p.m., when will they ring together again? Using our least common multiple calculator, we find the LCM(2, 3) = 6. Which means the next time both bells ring together...
  20. math_celebrity

    Every 10 customers receive a soda. Every 9 customers receive a hot dog. There are 450 customers. How

    Every 10 customers receive a soda. Every 9 customers receive a hot dog. There are 450 customers. How many received both a soda and hot dog? Fine the Least Common Multiple of 9 and 10 using our LCM Calculator: LCM(9, 10) = 90. So every 90 customers receives a soda and a hot dog. We have 90, 180...
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