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Subtract 20/56 from 84/45

1st number: 1 39/45, 2nd number: 20/56

84/45 - 20/56 is 317/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 56 is 2520
  2. For the 1st fraction, since 45 × 56 = 2520,
    84/45 = 84 × 56/45 × 56 = 4704/2520
  3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
    20/56 = 20 × 45/56 × 45 = 900/2520
  4. Subtract the two fractions:
    4704/2520 - 900/2520 = 4704 - 900/2520 = 3804/2520
  5. After reducing the fraction, the answer is 317/210
  6. In mixed form: 1107/210

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