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Subtract 1/72 from 42/15

1st number: 2 12/15, 2nd number: 1/72

42/15 - 1/72 is 1003/360.

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,
    42/15 = 42 × 24/15 × 24 = 1008/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    1/72 = 1 × 5/72 × 5 = 5/360
  4. Subtract the two like fractions:
    1008/360 - 5/360 = 1008 - 5/360 = 1003/360
  5. In mixed form: 2283/360

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