Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 80/90 and 54/70

80/90 + 54/70 is 523/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    80/90 = 80 × 7/90 × 7 = 560/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    54/70 = 54 × 9/70 × 9 = 486/630
  4. Add the two like fractions:
    560/630 + 486/630 = 560 + 486/630 = 1046/630
  5. 1046/630 simplified gives 523/315
  6. So, 80/90 + 54/70 = 523/315
    In mixed form: 1208/315

MathStep (Works offline)

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

Related:

© everydaycalculation.com