Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 10/20 and 84/7

1st number: 10/20, 2nd number: 12 0/7

10/20 + 84/7 is 25/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    10/20 = 10 × 7/20 × 7 = 70/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    84/7 = 84 × 20/7 × 20 = 1680/140
  4. Add the two like fractions:
    70/140 + 1680/140 = 70 + 1680/140 = 1750/140
  5. 1750/140 simplified gives 25/2
  6. So, 10/20 + 84/7 = 25/2
    In mixed form: 121/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com