Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/15 and 70/80

1st number: 2 0/15, 2nd number: 70/80

30/15 + 70/80 is 23/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 15 × 16 = 240,
    30/15 = 30 × 16/15 × 16 = 480/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    70/80 = 70 × 3/80 × 3 = 210/240
  4. Add the two like fractions:
    480/240 + 210/240 = 480 + 210/240 = 690/240
  5. 690/240 simplified gives 23/8
  6. So, 30/15 + 70/80 = 23/8
    In mixed form: 27/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com