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Subtract 42/25 from 56/36

1st number: 1 20/36, 2nd number: 1 17/25

56/36 - 42/25 is -28/225.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 25 is 900

    Next, find the equivalent fraction of both fractional numbers with denominator 900
  2. For the 1st fraction, since 36 × 25 = 900,
    56/36 = 56 × 25/36 × 25 = 1400/900
  3. Likewise, for the 2nd fraction, since 25 × 36 = 900,
    42/25 = 42 × 36/25 × 36 = 1512/900
  4. Subtract the two like fractions:
    1400/900 - 1512/900 = 1400 - 1512/900 = -112/900
  5. After reducing the fraction, the answer is -28/225

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