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Subtract 42/40 from 50/15

1st number: 3 5/15, 2nd number: 1 2/40

50/15 - 42/40 is 137/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    50/15 = 50 × 8/15 × 8 = 400/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    42/40 = 42 × 3/40 × 3 = 126/120
  4. Subtract the two like fractions:
    400/120 - 126/120 = 400 - 126/120 = 274/120
  5. After reducing the fraction, the answer is 137/60
  6. In mixed form: 217/60

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