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Subtract 21/56 from 72/36

1st number: 2 0/36, 2nd number: 21/56

72/36 - 21/56 is 13/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 56 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 36 × 14 = 504,
    72/36 = 72 × 14/36 × 14 = 1008/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    21/56 = 21 × 9/56 × 9 = 189/504
  4. Subtract the two like fractions:
    1008/504 - 189/504 = 1008 - 189/504 = 819/504
  5. After reducing the fraction, the answer is 13/8
  6. In mixed form: 15/8

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