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Subtract 70/30 from 21/5

1st number: 4 1/5, 2nd number: 2 10/30

21/5 - 70/30 is 28/15.

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,
    21/5 = 21 × 6/5 × 6 = 126/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    70/30 = 70 × 1/30 × 1 = 70/30
  4. Subtract the two like fractions:
    126/30 - 70/30 = 126 - 70/30 = 56/30
  5. After reducing the fraction, the answer is 28/15
  6. In mixed form: 113/15

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