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Subtract 7/9 from 40/7

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

40/7 - 7/9 is 311/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    40/7 = 40 × 9/7 × 9 = 360/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    7/9 = 7 × 7/9 × 7 = 49/63
  4. Subtract the two fractions:
    360/63 - 49/63 = 360 - 49/63 = 311/63
  5. In mixed form: 459/63

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