Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/20 and 84/40

1st number: 4 10/20, 2nd number: 2 4/40

90/20 + 84/40 is 33/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 20 × 2 = 40,
    90/20 = 90 × 2/20 × 2 = 180/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    84/40 = 84 × 1/40 × 1 = 84/40
  4. Add the two like fractions:
    180/40 + 84/40 = 180 + 84/40 = 264/40
  5. 264/40 simplified gives 33/5
  6. So, 90/20 + 84/40 = 33/5
    In mixed form: 63/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com