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Subtract 20/10 from 75/70

1st number: 1 5/70, 2nd number: 2 0/10

75/70 - 20/10 is -13/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 10 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 70 × 1 = 70,
    75/70 = 75 × 1/70 × 1 = 75/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    20/10 = 20 × 7/10 × 7 = 140/70
  4. Subtract the two like fractions:
    75/70 - 140/70 = 75 - 140/70 = -65/70
  5. After reducing the fraction, the answer is -13/14

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