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Subtract 4/90 from 84/56

1st number: 1 28/56, 2nd number: 4/90

84/56 - 4/90 is 131/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 90 is 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    84/56 = 84 × 45/56 × 45 = 3780/2520
  3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
    4/90 = 4 × 28/90 × 28 = 112/2520
  4. Subtract the two fractions:
    3780/2520 - 112/2520 = 3780 - 112/2520 = 3668/2520
  5. After reducing the fraction, the answer is 131/90
  6. In mixed form: 141/90

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