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Subtract 9/72 from 28/15

1st number: 1 13/15, 2nd number: 9/72

28/15 - 9/72 is 209/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 15 × 24 = 360,
    28/15 = 28 × 24/15 × 24 = 672/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    9/72 = 9 × 5/72 × 5 = 45/360
  4. Subtract the two like fractions:
    672/360 - 45/360 = 672 - 45/360 = 627/360
  5. After reducing the fraction, the answer is 209/120
  6. In mixed form: 189/120

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