Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 10/40 and 81/84

10/40 + 81/84 is 17/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 84 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    10/40 = 10 × 21/40 × 21 = 210/840
  3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
    81/84 = 81 × 10/84 × 10 = 810/840
  4. Add the two like fractions:
    210/840 + 810/840 = 210 + 810/840 = 1020/840
  5. 1020/840 simplified gives 17/14
  6. So, 10/40 + 81/84 = 17/14
    In mixed form: 13/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com