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Subtract 18/40 from 56/7

1st number: 8 0/7, 2nd number: 18/40

56/7 - 18/40 is 151/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 7 × 40 = 280,
    56/7 = 56 × 40/7 × 40 = 2240/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    18/40 = 18 × 7/40 × 7 = 126/280
  4. Subtract the two like fractions:
    2240/280 - 126/280 = 2240 - 126/280 = 2114/280
  5. After reducing the fraction, the answer is 151/20
  6. In mixed form: 711/20

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