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Subtract 1/70 from 63/20

1st number: 3 3/20, 2nd number: 1/70

63/20 - 1/70 is 439/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 70 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    63/20 = 63 × 7/20 × 7 = 441/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    1/70 = 1 × 2/70 × 2 = 2/140
  4. Subtract the two like fractions:
    441/140 - 2/140 = 441 - 2/140 = 439/140
  5. In mixed form: 319/140

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