Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 49/70 and 28/90

49/70 + 28/90 is 91/90.

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,
    49/70 = 49 × 9/70 × 9 = 441/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    28/90 = 28 × 7/90 × 7 = 196/630
  4. Add the two like fractions:
    441/630 + 196/630 = 441 + 196/630 = 637/630
  5. 637/630 simplified gives 91/90
  6. So, 49/70 + 28/90 = 91/90
    In mixed form: 11/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com