Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 56/80 and 3/21

56/80 + 3/21 is 59/70.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 80 × 21 = 1680,
    56/80 = 56 × 21/80 × 21 = 1176/1680
  3. Likewise, for the 2nd fraction, since 21 × 80 = 1680,
    3/21 = 3 × 80/21 × 80 = 240/1680
  4. Add the two like fractions:
    1176/1680 + 240/1680 = 1176 + 240/1680 = 1416/1680
  5. 1416/1680 simplified gives 59/70
  6. So, 56/80 + 3/21 = 59/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com