Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/6 and 8/21

1st number: 15 0/6, 2nd number: 8/21

90/6 + 8/21 is 323/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 21 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 6 × 7 = 42,
    90/6 = 90 × 7/6 × 7 = 630/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    8/21 = 8 × 2/21 × 2 = 16/42
  4. Add the two like fractions:
    630/42 + 16/42 = 630 + 16/42 = 646/42
  5. 646/42 simplified gives 323/21
  6. So, 90/6 + 8/21 = 323/21
    In mixed form: 158/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com