Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/20 and 75/40

1st number: 15/20, 2nd number: 1 35/40

15/20 + 75/40 is 21/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 40 is 40
  2. For the 1st fraction, since 20 × 2 = 40,
    15/20 = 15 × 2/20 × 2 = 30/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    75/40 = 75 × 1/40 × 1 = 75/40
  4. Add the two fractions:
    30/40 + 75/40 = 30 + 75/40 = 105/40
  5. 105/40 simplified gives 21/8
  6. So, 15/20 + 75/40 = 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