Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 81/54 and 10/42

1st number: 1 27/54, 2nd number: 10/42

81/54 + 10/42 is 73/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378
  2. For the 1st fraction, since 54 × 7 = 378,
    81/54 = 81 × 7/54 × 7 = 567/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    10/42 = 10 × 9/42 × 9 = 90/378
  4. Add the two fractions:
    567/378 + 90/378 = 567 + 90/378 = 657/378
  5. After reducing the fraction, the answer is 73/42
  6. In mixed form: 131/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com