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Subtract 21/30 from 10/5

1st number: 2 0/5, 2nd number: 21/30

10/5 - 21/30 is 13/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 30 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 5 × 6 = 30,
    10/5 = 10 × 6/5 × 6 = 60/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    21/30 = 21 × 1/30 × 1 = 21/30
  4. Subtract the two like fractions:
    60/30 - 21/30 = 60 - 21/30 = 39/30
  5. After reducing the fraction, the answer is 13/10
  6. In mixed form: 13/10

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