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Subtract 70/40 from 5/7

1st number: 5/7, 2nd number: 1 30/40

5/7 - 70/40 is -29/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 7 × 40 = 280,
    5/7 = 5 × 40/7 × 40 = 200/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    70/40 = 70 × 7/40 × 7 = 490/280
  4. Subtract the two like fractions:
    200/280 - 490/280 = 200 - 490/280 = -290/280
  5. After reducing the fraction, the answer is -29/28

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