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Subtract 7/45 from 28/72

28/72 - 7/45 is 7/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    28/72 = 28 × 5/72 × 5 = 140/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    7/45 = 7 × 8/45 × 8 = 56/360
  4. Subtract the two like fractions:
    140/360 - 56/360 = 140 - 56/360 = 84/360
  5. After reducing the fraction, the answer is 7/30

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