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Subtract 4/70 from 21/15

1st number: 1 6/15, 2nd number: 4/70

21/15 - 4/70 is 47/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 70 is 210
  2. For the 1st fraction, since 15 × 14 = 210,
    21/15 = 21 × 14/15 × 14 = 294/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    4/70 = 4 × 3/70 × 3 = 12/210
  4. Subtract the two fractions:
    294/210 - 12/210 = 294 - 12/210 = 282/210
  5. After reducing the fraction, the answer is 47/35
  6. In mixed form: 112/35

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