Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/18 and 9/20

1st number: 1 12/18, 2nd number: 9/20

30/18 + 9/20 is 127/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    30/18 = 30 × 10/18 × 10 = 300/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    9/20 = 9 × 9/20 × 9 = 81/180
  4. Add the two like fractions:
    300/180 + 81/180 = 300 + 81/180 = 381/180
  5. 381/180 simplified gives 127/60
  6. So, 30/18 + 9/20 = 127/60
    In mixed form: 27/60

MathStep (Works offline)

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

Related:

© everydaycalculation.com