Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/54 and 16/21

30/54 + 16/21 is 83/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 21 is 378
  2. For the 1st fraction, since 54 × 7 = 378,
    30/54 = 30 × 7/54 × 7 = 210/378
  3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
    16/21 = 16 × 18/21 × 18 = 288/378
  4. Add the two fractions:
    210/378 + 288/378 = 210 + 288/378 = 498/378
  5. 498/378 simplified gives 83/63
  6. So, 30/54 + 16/21 = 83/63
    In mixed form: 120/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com