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Subtract 9/7 from 7/4

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

7/4 - 9/7 is 13/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 4 × 7 = 28,
    7/4 = 7 × 7/4 × 7 = 49/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    9/7 = 9 × 4/7 × 4 = 36/28
  4. Subtract the two like fractions:
    49/28 - 36/28 = 49 - 36/28 = 13/28

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