Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/80 and 5/90

1st number: 1 10/80, 2nd number: 5/90

90/80 + 5/90 is 85/72.

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,
    90/80 = 90 × 9/80 × 9 = 810/720
  3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
    5/90 = 5 × 8/90 × 8 = 40/720
  4. Add the two like fractions:
    810/720 + 40/720 = 810 + 40/720 = 850/720
  5. 850/720 simplified gives 85/72
  6. So, 90/80 + 5/90 = 85/72
    In mixed form: 113/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com