Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/15 and 25/80

1st number: 1 3/15, 2nd number: 25/80

18/15 + 25/80 is 121/80.

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,
    18/15 = 18 × 16/15 × 16 = 288/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    25/80 = 25 × 3/80 × 3 = 75/240
  4. Add the two like fractions:
    288/240 + 75/240 = 288 + 75/240 = 363/240
  5. 363/240 simplified gives 121/80
  6. So, 18/15 + 25/80 = 121/80
    In mixed form: 141/80

MathStep (Works offline)

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

Related:

© everydaycalculation.com