Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/70 and 81/90

5/70 + 81/90 is 34/35.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    5/70 = 5 × 9/70 × 9 = 45/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    81/90 = 81 × 7/90 × 7 = 567/630
  4. Add the two like fractions:
    45/630 + 567/630 = 45 + 567/630 = 612/630
  5. 612/630 simplified gives 34/35
  6. So, 5/70 + 81/90 = 34/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com