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Subtract 18/72 from 3/10

3/10 - 18/72 is 1/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 72 is 360
  2. For the 1st fraction, since 10 × 36 = 360,
    3/10 = 3 × 36/10 × 36 = 108/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    18/72 = 18 × 5/72 × 5 = 90/360
  4. Subtract the two fractions:
    108/360 - 90/360 = 108 - 90/360 = 18/360
  5. After reducing the fraction, the answer is 1/20

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