Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/21 and 8/7

1st number: 4/21, 2nd number: 1 1/7

4/21 + 8/7 is 4/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 21 × 1 = 21,
    4/21 = 4 × 1/21 × 1 = 4/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    8/7 = 8 × 3/7 × 3 = 24/21
  4. Add the two like fractions:
    4/21 + 24/21 = 4 + 24/21 = 28/21
  5. 28/21 simplified gives 4/3
  6. So, 4/21 + 8/7 = 4/3
    In mixed form: 11/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com