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Subtract 2/20 from 15/7

1st number: 2 1/7, 2nd number: 2/20

15/7 - 2/20 is 143/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 7 × 20 = 140,
    15/7 = 15 × 20/7 × 20 = 300/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    2/20 = 2 × 7/20 × 7 = 14/140
  4. Subtract the two like fractions:
    300/140 - 14/140 = 300 - 14/140 = 286/140
  5. After reducing the fraction, the answer is 143/70
  6. In mixed form: 23/70

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