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Subtract 10/54 from 90/42

1st number: 2 6/42, 2nd number: 10/54

90/42 - 10/54 is 370/189.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378
  2. For the 1st fraction, since 42 × 9 = 378,
    90/42 = 90 × 9/42 × 9 = 810/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    10/54 = 10 × 7/54 × 7 = 70/378
  4. Subtract the two fractions:
    810/378 - 70/378 = 810 - 70/378 = 740/378
  5. After reducing the fraction, the answer is 370/189
  6. In mixed form: 1181/189

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