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Subtract 21/10 from 30/5

1st number: 6 0/5, 2nd number: 2 1/10

30/5 - 21/10 is 39/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 10 is 10

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

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