Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 15/81 from 60/42

1st number: 1 18/42, 2nd number: 15/81

60/42 - 15/81 is 235/189.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 81 is 1134

    Next, find the equivalent fraction of both fractional numbers with denominator 1134
  2. For the 1st fraction, since 42 × 27 = 1134,
    60/42 = 60 × 27/42 × 27 = 1620/1134
  3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
    15/81 = 15 × 14/81 × 14 = 210/1134
  4. Subtract the two like fractions:
    1620/1134 - 210/1134 = 1620 - 210/1134 = 1410/1134
  5. After reducing the fraction, the answer is 235/189
  6. In mixed form: 146/189

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com