Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 27/18 and 70/80

1st number: 1 9/18, 2nd number: 70/80

27/18 + 70/80 is 19/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 18 × 40 = 720,
    27/18 = 27 × 40/18 × 40 = 1080/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    70/80 = 70 × 9/80 × 9 = 630/720
  4. Add the two like fractions:
    1080/720 + 630/720 = 1080 + 630/720 = 1710/720
  5. 1710/720 simplified gives 19/8
  6. So, 27/18 + 70/80 = 19/8
    In mixed form: 23/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com