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Subtract 30/70 from 8/36

8/36 - 30/70 is -13/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 70 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 36 × 35 = 1260,
    8/36 = 8 × 35/36 × 35 = 280/1260
  3. Likewise, for the 2nd fraction, since 70 × 18 = 1260,
    30/70 = 30 × 18/70 × 18 = 540/1260
  4. Subtract the two like fractions:
    280/1260 - 540/1260 = 280 - 540/1260 = -260/1260
  5. After reducing the fraction, the answer is -13/63

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