Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 8/40 and 98/21

1st number: 8/40, 2nd number: 4 14/21

8/40 + 98/21 is 73/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 21 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    8/40 = 8 × 21/40 × 21 = 168/840
  3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
    98/21 = 98 × 40/21 × 40 = 3920/840
  4. Add the two like fractions:
    168/840 + 3920/840 = 168 + 3920/840 = 4088/840
  5. 4088/840 simplified gives 73/15
  6. So, 8/40 + 98/21 = 73/15
    In mixed form: 413/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com