Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/80 and 70/28

1st number: 9/80, 2nd number: 2 14/28

9/80 + 70/28 is 209/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 28 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    9/80 = 9 × 7/80 × 7 = 63/560
  3. Likewise, for the 2nd fraction, since 28 × 20 = 560,
    70/28 = 70 × 20/28 × 20 = 1400/560
  4. Add the two like fractions:
    63/560 + 1400/560 = 63 + 1400/560 = 1463/560
  5. 1463/560 simplified gives 209/80
  6. So, 9/80 + 70/28 = 209/80
    In mixed form: 249/80

MathStep (Works offline)

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

Related:

© everydaycalculation.com