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Subtract 2/84 from 90/40

1st number: 2 10/40, 2nd number: 2/84

90/40 - 2/84 is 187/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 84 is 840
  2. For the 1st fraction, since 40 × 21 = 840,
    90/40 = 90 × 21/40 × 21 = 1890/840
  3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
    2/84 = 2 × 10/84 × 10 = 20/840
  4. Subtract the two fractions:
    1890/840 - 20/840 = 1890 - 20/840 = 1870/840
  5. After reducing the fraction, the answer is 187/84
  6. In mixed form: 219/84

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