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Subtract 1/90 from 84/12

1st number: 7 0/12, 2nd number: 1/90

84/12 - 1/90 is 629/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    84/12 = 84 × 15/12 × 15 = 1260/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    1/90 = 1 × 2/90 × 2 = 2/180
  4. Subtract the two like fractions:
    1260/180 - 2/180 = 1260 - 2/180 = 1258/180
  5. After reducing the fraction, the answer is 629/90
  6. In mixed form: 689/90

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