Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/80 and 84/90

40/80 + 84/90 is 43/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 90 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    40/80 = 40 × 9/80 × 9 = 360/720
  3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
    84/90 = 84 × 8/90 × 8 = 672/720
  4. Add the two like fractions:
    360/720 + 672/720 = 360 + 672/720 = 1032/720
  5. 1032/720 simplified gives 43/30
  6. So, 40/80 + 84/90 = 43/30
    In mixed form: 113/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com