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Subtract 90/63 from 80/15

1st number: 5 5/15, 2nd number: 1 27/63

80/15 - 90/63 is 82/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315
  2. For the 1st fraction, since 15 × 21 = 315,
    80/15 = 80 × 21/15 × 21 = 1680/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    90/63 = 90 × 5/63 × 5 = 450/315
  4. Subtract the two fractions:
    1680/315 - 450/315 = 1680 - 450/315 = 1230/315
  5. After reducing the fraction, the answer is 82/21
  6. In mixed form: 319/21

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