Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/15 and 21/16

1st number: 1 5/15, 2nd number: 1 5/16

20/15 + 21/16 is 127/48.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 16 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 15 × 16 = 240,
    20/15 = 20 × 16/15 × 16 = 320/240
  3. Likewise, for the 2nd fraction, since 16 × 15 = 240,
    21/16 = 21 × 15/16 × 15 = 315/240
  4. Add the two like fractions:
    320/240 + 315/240 = 320 + 315/240 = 635/240
  5. 635/240 simplified gives 127/48
  6. So, 20/15 + 21/16 = 127/48
    In mixed form: 231/48

MathStep (Works offline)

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

Related:

© everydaycalculation.com