Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/80 and 45/30

1st number: 18/80, 2nd number: 1 15/30

18/80 + 45/30 is 69/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 30 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    18/80 = 18 × 3/80 × 3 = 54/240
  3. Likewise, for the 2nd fraction, since 30 × 8 = 240,
    45/30 = 45 × 8/30 × 8 = 360/240
  4. Add the two like fractions:
    54/240 + 360/240 = 54 + 360/240 = 414/240
  5. 414/240 simplified gives 69/40
  6. So, 18/80 + 45/30 = 69/40
    In mixed form: 129/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com