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Subtract 49/48 from 72/70

1st number: 1 2/70, 2nd number: 1 1/48

72/70 - 49/48 is 13/1680.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 48 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 70 × 24 = 1680,
    72/70 = 72 × 24/70 × 24 = 1728/1680
  3. Likewise, for the 2nd fraction, since 48 × 35 = 1680,
    49/48 = 49 × 35/48 × 35 = 1715/1680
  4. Subtract the two like fractions:
    1728/1680 - 1715/1680 = 1728 - 1715/1680 = 13/1680

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