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Subtract 30/40 from 56/12

1st number: 4 8/12, 2nd number: 30/40

56/12 - 30/40 is 47/12.

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,
    56/12 = 56 × 10/12 × 10 = 560/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    30/40 = 30 × 3/40 × 3 = 90/120
  4. Subtract the two like fractions:
    560/120 - 90/120 = 560 - 90/120 = 470/120
  5. After reducing the fraction, the answer is 47/12
  6. In mixed form: 311/12

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