Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/8 and 15/30

1st number: 10 1/8, 2nd number: 15/30

81/8 + 15/30 is 85/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    81/8 = 81 × 15/8 × 15 = 1215/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    15/30 = 15 × 4/30 × 4 = 60/120
  4. Add the two like fractions:
    1215/120 + 60/120 = 1215 + 60/120 = 1275/120
  5. 1275/120 simplified gives 85/8
  6. So, 81/8 + 15/30 = 85/8
    In mixed form: 105/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com