Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/2 and 70/30

1st number: 40 1/2, 2nd number: 2 10/30

81/2 + 70/30 is 257/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 30 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 2 × 15 = 30,
    81/2 = 81 × 15/2 × 15 = 1215/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    70/30 = 70 × 1/30 × 1 = 70/30
  4. Add the two like fractions:
    1215/30 + 70/30 = 1215 + 70/30 = 1285/30
  5. 1285/30 simplified gives 257/6
  6. So, 81/2 + 70/30 = 257/6
    In mixed form: 425/6

MathStep (Works offline)

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

Related:

© everydaycalculation.com