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Subtract 21/8 from 70/16

1st number: 4 6/16, 2nd number: 2 5/8

70/16 - 21/8 is 7/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 8 is 16

    Next, find the equivalent fraction of both fractional numbers with denominator 16
  2. For the 1st fraction, since 16 × 1 = 16,
    70/16 = 70 × 1/16 × 1 = 70/16
  3. Likewise, for the 2nd fraction, since 8 × 2 = 16,
    21/8 = 21 × 2/8 × 2 = 42/16
  4. Subtract the two like fractions:
    70/16 - 42/16 = 70 - 42/16 = 28/16
  5. After reducing the fraction, the answer is 7/4
  6. In mixed form: 13/4

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