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Subtract 42/25 from 24/20

1st number: 1 4/20, 2nd number: 1 17/25

24/20 - 42/25 is -12/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 25 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 20 × 5 = 100,
    24/20 = 24 × 5/20 × 5 = 120/100
  3. Likewise, for the 2nd fraction, since 25 × 4 = 100,
    42/25 = 42 × 4/25 × 4 = 168/100
  4. Subtract the two like fractions:
    120/100 - 168/100 = 120 - 168/100 = -48/100
  5. After reducing the fraction, the answer is -12/25

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