Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/16 and 30/90

1st number: 1 4/16, 2nd number: 30/90

20/16 + 30/90 is 19/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 90 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 16 × 45 = 720,
    20/16 = 20 × 45/16 × 45 = 900/720
  3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
    30/90 = 30 × 8/90 × 8 = 240/720
  4. Add the two like fractions:
    900/720 + 240/720 = 900 + 240/720 = 1140/720
  5. 1140/720 simplified gives 19/12
  6. So, 20/16 + 30/90 = 19/12
    In mixed form: 17/12

MathStep (Works offline)

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

Related:

© everydaycalculation.com