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Subtract 18/40 from 56/15

1st number: 3 11/15, 2nd number: 18/40

56/15 - 18/40 is 197/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 40 is 120
  2. For the 1st fraction, since 15 × 8 = 120,
    56/15 = 56 × 8/15 × 8 = 448/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    18/40 = 18 × 3/40 × 3 = 54/120
  4. Subtract the two fractions:
    448/120 - 54/120 = 448 - 54/120 = 394/120
  5. After reducing the fraction, the answer is 197/60
  6. In mixed form: 317/60

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