Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/4 and 21/8

1st number: 1/4, 2nd number: 2 5/8

1/4 + 21/8 is 23/8.

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,
    1/4 = 1 × 2/4 × 2 = 2/8
  3. Likewise, for the 2nd fraction, since 8 × 1 = 8,
    21/8 = 21 × 1/8 × 1 = 21/8
  4. Add the two fractions:
    2/8 + 21/8 = 2 + 21/8 = 23/8
  5. So, 1/4 + 21/8 = 23/8
    In mixed form: 27/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com