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Subtract 15/70 from 70/20

1st number: 3 10/20, 2nd number: 15/70

70/20 - 15/70 is 23/7.

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,
    70/20 = 70 × 7/20 × 7 = 490/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    15/70 = 15 × 2/70 × 2 = 30/140
  4. Subtract the two like fractions:
    490/140 - 30/140 = 490 - 30/140 = 460/140
  5. After reducing the fraction, the answer is 23/7
  6. In mixed form: 32/7

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