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Subtract 4/12 from 90/40

1st number: 2 10/40, 2nd number: 4/12

90/40 - 4/12 is 23/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 12 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    90/40 = 90 × 3/40 × 3 = 270/120
  3. Likewise, for the 2nd fraction, since 12 × 10 = 120,
    4/12 = 4 × 10/12 × 10 = 40/120
  4. Subtract the two fractions:
    270/120 - 40/120 = 270 - 40/120 = 230/120
  5. After reducing the fraction, the answer is 23/12
  6. In mixed form: 111/12

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