Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 28/42 and 90/54

1st number: 28/42, 2nd number: 1 36/54

28/42 + 90/54 is 7/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378
  2. For the 1st fraction, since 42 × 9 = 378,
    28/42 = 28 × 9/42 × 9 = 252/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    90/54 = 90 × 7/54 × 7 = 630/378
  4. Add the two fractions:
    252/378 + 630/378 = 252 + 630/378 = 882/378
  5. After reducing the fraction, the answer is 7/3
  6. In mixed form: 21/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com