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Subtract 7/18 from 40/7

1st number: 5 5/7, 2nd number: 7/18

40/7 - 7/18 is 671/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 7 × 18 = 126,
    40/7 = 40 × 18/7 × 18 = 720/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    7/18 = 7 × 7/18 × 7 = 49/126
  4. Subtract the two like fractions:
    720/126 - 49/126 = 720 - 49/126 = 671/126
  5. In mixed form: 541/126

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