Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/25 and 18/40

20/25 + 18/40 is 5/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 40 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 25 × 8 = 200,
    20/25 = 20 × 8/25 × 8 = 160/200
  3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
    18/40 = 18 × 5/40 × 5 = 90/200
  4. Add the two like fractions:
    160/200 + 90/200 = 160 + 90/200 = 250/200
  5. 250/200 simplified gives 5/4
  6. So, 20/25 + 18/40 = 5/4
    In mixed form: 11/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com