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Subtract 5/20 from 42/25

1st number: 1 17/25, 2nd number: 5/20

42/25 - 5/20 is 143/100.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 25 × 4 = 100,
    42/25 = 42 × 4/25 × 4 = 168/100
  3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
    5/20 = 5 × 5/20 × 5 = 25/100
  4. Subtract the two like fractions:
    168/100 - 25/100 = 168 - 25/100 = 143/100
  5. In mixed form: 143/100

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