Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/80 and 12/8

1st number: 1 10/80, 2nd number: 1 4/8

90/80 + 12/8 is 21/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 8 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    90/80 = 90 × 1/80 × 1 = 90/80
  3. Likewise, for the 2nd fraction, since 8 × 10 = 80,
    12/8 = 12 × 10/8 × 10 = 120/80
  4. Add the two like fractions:
    90/80 + 120/80 = 90 + 120/80 = 210/80
  5. 210/80 simplified gives 21/8
  6. So, 90/80 + 12/8 = 21/8
    In mixed form: 25/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com