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Subtract 3/8 from 18/7

1st number: 2 4/7, 2nd number: 3/8

18/7 - 3/8 is 123/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 8 is 56
  2. For the 1st fraction, since 7 × 8 = 56,
    18/7 = 18 × 8/7 × 8 = 144/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    3/8 = 3 × 7/8 × 7 = 21/56
  4. Subtract the two fractions:
    144/56 - 21/56 = 144 - 21/56 = 123/56
  5. In mixed form: 211/56

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