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Subtract 70/49 from 20/56

1st number: 20/56, 2nd number: 1 21/49

20/56 - 70/49 is -15/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 49 is 392

    Next, find the equivalent fraction of both fractional numbers with denominator 392
  2. For the 1st fraction, since 56 × 7 = 392,
    20/56 = 20 × 7/56 × 7 = 140/392
  3. Likewise, for the 2nd fraction, since 49 × 8 = 392,
    70/49 = 70 × 8/49 × 8 = 560/392
  4. Subtract the two like fractions:
    140/392 - 560/392 = 140 - 560/392 = -420/392
  5. After reducing the fraction, the answer is -15/14

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