Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/21 and 25/80

4/21 + 25/80 is 169/336.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 21 × 80 = 1680,
    4/21 = 4 × 80/21 × 80 = 320/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    25/80 = 25 × 21/80 × 21 = 525/1680
  4. Add the two like fractions:
    320/1680 + 525/1680 = 320 + 525/1680 = 845/1680
  5. 845/1680 simplified gives 169/336
  6. So, 4/21 + 25/80 = 169/336

MathStep (Works offline)

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

Related:

© everydaycalculation.com