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Subtract 75/70 from 20/49

1st number: 20/49, 2nd number: 1 5/70

20/49 - 75/70 is -65/98.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 70 is 490

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 49 × 10 = 490,
    20/49 = 20 × 10/49 × 10 = 200/490
  3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
    75/70 = 75 × 7/70 × 7 = 525/490
  4. Subtract the two like fractions:
    200/490 - 525/490 = 200 - 525/490 = -325/490
  5. After reducing the fraction, the answer is -65/98

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