Least common multiple (LCM) - math word problems

Number of problems found: 111

  • LCM
    calc_icon What is the least common multiple of 5, 50, 14?
  • Lcm simple
    lcm_gears Find least common multiple of this two numbers: 140 175.
  • Decompose
    cinema_5 Decompose into primes and find the smallest common multiple n of (16,20) and the largest common divisor D of the pair of numbers (140,100)
  • LCD 2
    zlomky_6 The least common denominator of 2/5, 1/2, and 3/4
  • LCM
    numbers_11 Common multiple of three numbers is 3276. One number is in this number 63 times, second 7 times, third 9 times. What are the numbers?
  • What is 3
    fractions_13 What is the least common denominator of 11/15 and 12/19?
  • LCM of two number
    numbers2_19 Find the smallest multiple of 63 and 147
  • Pyramid Z8–I–6
    pyramida_mo Each brick of pyramid contains one number. Whenever possible, the number in each brick is lowest common multiple of two numbers of bricks lying directly above it. That number may be in the lowest brick? Determine all possibilities.
  • Nuts
    nuts How many we must have at least nuts if we can equally divide it to 10 children, 12 children or 15 children and any nut left?
  • Dining tables
    stolik In the dining room are tables with 4 chairs, 6 chairs, 8 chairs. How many diners must be at least to be occupy all tables (chairs) and diners are more than 50?
  • School
    ratios_2 Headteacher think whether the distribution of pupils in race in groups of 4,5,6,9 or 10. How many pupils must have at least school at possible options?
  • Matches
    matches George poured out of the box matches and composing them triangles and no match was left. Then he tries squares, hexagons and octagons and no match was left. How many matches must be at least in the box?
  • Lcm of three numbers
    prime What is the Lcm of 120 15 and 5
  • The smallest number
    numbers_49 What is the smallest number that can be divided by both 5 and 7
  • Apples 2
    jableka How many minimum apples are in the cart, if possible is completely divided into packages of 6, 14 and 21 apples?
  • Fractions
    cmp_fractions Sort fractions ? by its size. Result write as three serial numbers 1,2,3.
  • Lcm 2
    lcm Create the smallest possible number that is divisible by numbers 5,8,9,4,3
  • Cents no more
    cent Janko bought pencils for 35 cents each. Neither he nor the salesperson had small coins just a whole € 1 coin. At least how many pencils had to buy to pay for the whole euros?
  • Dance ensemble
    dancers_1 The dance ensemble took the stage in pairs. During dancing, the dancers gradually formed groups of four, six and nine. How many dancers have an ensemble?
  • Two rulers
    meters We have two rulers. Scale interval on first rulers are a spaced 1 cm and on second spaced 15 mm. Rulers are attached to each other so that they match initial divider commas. What next dividers commas coincide? Find at least three cases.

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