Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/4 and 21/18

1st number: 5 0/4, 2nd number: 1 3/18

20/4 + 21/18 is 37/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 18 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 4 × 9 = 36,
    20/4 = 20 × 9/4 × 9 = 180/36
  3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
    21/18 = 21 × 2/18 × 2 = 42/36
  4. Add the two like fractions:
    180/36 + 42/36 = 180 + 42/36 = 222/36
  5. 222/36 simplified gives 37/6
  6. So, 20/4 + 21/18 = 37/6
    In mixed form: 61/6

MathStep (Works offline)

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

Related:

© everydaycalculation.com