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Subtract 9/40 from 40/12

1st number: 3 4/12, 2nd number: 9/40

40/12 - 9/40 is 373/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 12 × 10 = 120,
    40/12 = 40 × 10/12 × 10 = 400/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    9/40 = 9 × 3/40 × 3 = 27/120
  4. Subtract the two like fractions:
    400/120 - 27/120 = 400 - 27/120 = 373/120
  5. In mixed form: 313/120

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