Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/70 and 14/80

20/70 + 14/80 is 129/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 70 × 8 = 560,
    20/70 = 20 × 8/70 × 8 = 160/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    14/80 = 14 × 7/80 × 7 = 98/560
  4. Add the two like fractions:
    160/560 + 98/560 = 160 + 98/560 = 258/560
  5. 258/560 simplified gives 129/280
  6. So, 20/70 + 14/80 = 129/280

MathStep (Works offline)

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

Related:

© everydaycalculation.com