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Subtract 40/7 from 60/9

1st number: 6 6/9, 2nd number: 5 5/7

60/9 - 40/7 is 20/21.

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,
    60/9 = 60 × 7/9 × 7 = 420/63
  3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
    40/7 = 40 × 9/7 × 9 = 360/63
  4. Subtract the two fractions:
    420/63 - 360/63 = 420 - 360/63 = 60/63
  5. After reducing the fraction, the answer is 20/21

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