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Subtract 20/48 from 20/70

20/70 - 20/48 is -11/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 48 is 1680
  2. For the 1st fraction, since 70 × 24 = 1680,
    20/70 = 20 × 24/70 × 24 = 480/1680
  3. Likewise, for the 2nd fraction, since 48 × 35 = 1680,
    20/48 = 20 × 35/48 × 35 = 700/1680
  4. Subtract the two fractions:
    480/1680 - 700/1680 = 480 - 700/1680 = -220/1680
  5. After reducing the fraction, the answer is -11/84

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