Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 49/70 and 30/80

49/70 + 30/80 is 43/40.

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,
    49/70 = 49 × 8/70 × 8 = 392/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    30/80 = 30 × 7/80 × 7 = 210/560
  4. Add the two like fractions:
    392/560 + 210/560 = 392 + 210/560 = 602/560
  5. 602/560 simplified gives 43/40
  6. So, 49/70 + 30/80 = 43/40
    In mixed form: 13/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com