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Subtract 42/50 from 18/5

1st number: 3 3/5, 2nd number: 42/50

18/5 - 42/50 is 69/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 50 is 50

    Next, find the equivalent fraction of both fractional numbers with denominator 50
  2. For the 1st fraction, since 5 × 10 = 50,
    18/5 = 18 × 10/5 × 10 = 180/50
  3. Likewise, for the 2nd fraction, since 50 × 1 = 50,
    42/50 = 42 × 1/50 × 1 = 42/50
  4. Subtract the two like fractions:
    180/50 - 42/50 = 180 - 42/50 = 138/50
  5. After reducing the fraction, the answer is 69/25
  6. In mixed form: 219/25

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