Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/80 and 56/70

45/80 + 56/70 is 109/80.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    45/80 = 45 × 7/80 × 7 = 315/560
  3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
    56/70 = 56 × 8/70 × 8 = 448/560
  4. Add the two like fractions:
    315/560 + 448/560 = 315 + 448/560 = 763/560
  5. 763/560 simplified gives 109/80
  6. So, 45/80 + 56/70 = 109/80
    In mixed form: 129/80

MathStep (Works offline)

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

Related:

© everydaycalculation.com