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Subtract 3/70 from 20/50

20/50 - 3/70 is 5/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 70 is 350

    Next, find the equivalent fraction of both fractional numbers with denominator 350
  2. For the 1st fraction, since 50 × 7 = 350,
    20/50 = 20 × 7/50 × 7 = 140/350
  3. Likewise, for the 2nd fraction, since 70 × 5 = 350,
    3/70 = 3 × 5/70 × 5 = 15/350
  4. Subtract the two like fractions:
    140/350 - 15/350 = 140 - 15/350 = 125/350
  5. After reducing the fraction, the answer is 5/14

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