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Subtract 21/60 from 30/18

1st number: 1 12/18, 2nd number: 21/60

30/18 - 21/60 is 79/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 60 is 180
  2. For the 1st fraction, since 18 × 10 = 180,
    30/18 = 30 × 10/18 × 10 = 300/180
  3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
    21/60 = 21 × 3/60 × 3 = 63/180
  4. Subtract the two fractions:
    300/180 - 63/180 = 300 - 63/180 = 237/180
  5. After reducing the fraction, the answer is 79/60
  6. In mixed form: 119/60

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