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Subtract 72/7 from 10/3

1st number: 3 1/3, 2nd number: 10 2/7

10/3 - 72/7 is -146/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    10/3 = 10 × 7/3 × 7 = 70/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    72/7 = 72 × 3/7 × 3 = 216/21
  4. Subtract the two like fractions:
    70/21 - 216/21 = 70 - 216/21 = -146/21

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