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Subtract 9/7 from 20/2

1st number: 10 0/2, 2nd number: 1 2/7

20/2 - 9/7 is 61/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 7 is 14

    Next, find the equivalent fraction of both fractional numbers with denominator 14
  2. For the 1st fraction, since 2 × 7 = 14,
    20/2 = 20 × 7/2 × 7 = 140/14
  3. Likewise, for the 2nd fraction, since 7 × 2 = 14,
    9/7 = 9 × 2/7 × 2 = 18/14
  4. Subtract the two like fractions:
    140/14 - 18/14 = 140 - 18/14 = 122/14
  5. After reducing the fraction, the answer is 61/7
  6. In mixed form: 85/7

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