Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/36 and 45/80

28/36 + 45/80 is 193/144.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 36 × 20 = 720,
    28/36 = 28 × 20/36 × 20 = 560/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    45/80 = 45 × 9/80 × 9 = 405/720
  4. Add the two like fractions:
    560/720 + 405/720 = 560 + 405/720 = 965/720
  5. 965/720 simplified gives 193/144
  6. So, 28/36 + 45/80 = 193/144
    In mixed form: 149/144

MathStep (Works offline)

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

Related:

© everydaycalculation.com