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Subtract 70/15 from 21/14

1st number: 1 7/14, 2nd number: 4 10/15

21/14 - 70/15 is -19/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 15 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 14 × 15 = 210,
    21/14 = 21 × 15/14 × 15 = 315/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    70/15 = 70 × 14/15 × 14 = 980/210
  4. Subtract the two like fractions:
    315/210 - 980/210 = 315 - 980/210 = -665/210
  5. After reducing the fraction, the answer is -19/6

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