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Subtract 40/7 from 80/9

1st number: 8 8/9, 2nd number: 5 5/7

80/9 - 40/7 is 200/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 7 is 63
  2. For the 1st fraction, since 9 × 7 = 63,
    80/9 = 80 × 7/9 × 7 = 560/63
  3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
    40/7 = 40 × 9/7 × 9 = 360/63
  4. Subtract the two fractions:
    560/63 - 360/63 = 560 - 360/63 = 200/63
  5. In mixed form: 311/63

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