Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/25 and 9/20

1st number: 2 20/25, 2nd number: 9/20

70/25 + 9/20 is 13/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 20 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 25 × 4 = 100,
    70/25 = 70 × 4/25 × 4 = 280/100
  3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
    9/20 = 9 × 5/20 × 5 = 45/100
  4. Add the two like fractions:
    280/100 + 45/100 = 280 + 45/100 = 325/100
  5. 325/100 simplified gives 13/4
  6. So, 70/25 + 9/20 = 13/4
    In mixed form: 31/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com