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Subtract 70/36 from 72/70

1st number: 1 2/70, 2nd number: 1 34/36

72/70 - 70/36 is -577/630.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 70 × 18 = 1260,
    72/70 = 72 × 18/70 × 18 = 1296/1260
  3. Likewise, for the 2nd fraction, since 36 × 35 = 1260,
    70/36 = 70 × 35/36 × 35 = 2450/1260
  4. Subtract the two like fractions:
    1296/1260 - 2450/1260 = 1296 - 2450/1260 = -1154/1260
  5. After reducing the fraction, the answer is -577/630

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