Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/4 and 20/8

1st number: 3 3/4, 2nd number: 2 4/8

15/4 + 20/8 is 25/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 8 is 8
  2. For the 1st fraction, since 4 × 2 = 8,
    15/4 = 15 × 2/4 × 2 = 30/8
  3. Likewise, for the 2nd fraction, since 8 × 1 = 8,
    20/8 = 20 × 1/8 × 1 = 20/8
  4. Add the two fractions:
    30/8 + 20/8 = 30 + 20/8 = 50/8
  5. 50/8 simplified gives 25/4
  6. So, 15/4 + 20/8 = 25/4
    In mixed form: 61/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com