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Subtract 45/72 from 28/30

28/30 - 45/72 is 37/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 30 × 12 = 360,
    28/30 = 28 × 12/30 × 12 = 336/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    45/72 = 45 × 5/72 × 5 = 225/360
  4. Subtract the two like fractions:
    336/360 - 225/360 = 336 - 225/360 = 111/360
  5. After reducing the fraction, the answer is 37/120

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