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Subtract 28/18 from 5/7

1st number: 5/7, 2nd number: 1 10/18

5/7 - 28/18 is -53/63.

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,
    5/7 = 5 × 18/7 × 18 = 90/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    28/18 = 28 × 7/18 × 7 = 196/126
  4. Subtract the two like fractions:
    90/126 - 196/126 = 90 - 196/126 = -106/126
  5. After reducing the fraction, the answer is -53/63

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