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Subtract 15/9 from 72/49

1st number: 1 23/49, 2nd number: 1 6/9

72/49 - 15/9 is -29/147.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 9 is 441

    Next, find the equivalent fraction of both fractional numbers with denominator 441
  2. For the 1st fraction, since 49 × 9 = 441,
    72/49 = 72 × 9/49 × 9 = 648/441
  3. Likewise, for the 2nd fraction, since 9 × 49 = 441,
    15/9 = 15 × 49/9 × 49 = 735/441
  4. Subtract the two like fractions:
    648/441 - 735/441 = 648 - 735/441 = -87/441
  5. After reducing the fraction, the answer is -29/147

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