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Subtract 80/30 from 21/60

1st number: 21/60, 2nd number: 2 20/30

21/60 - 80/30 is -139/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 30 is 60
  2. For the 1st fraction, since 60 × 1 = 60,
    21/60 = 21 × 1/60 × 1 = 21/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    80/30 = 80 × 2/30 × 2 = 160/60
  4. Subtract the two fractions:
    21/60 - 160/60 = 21 - 160/60 = -139/60

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