Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/80 and 70/98

30/80 + 70/98 is 61/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 98 is 3920

    Next, find the equivalent fraction of both fractional numbers with denominator 3920
  2. For the 1st fraction, since 80 × 49 = 3920,
    30/80 = 30 × 49/80 × 49 = 1470/3920
  3. Likewise, for the 2nd fraction, since 98 × 40 = 3920,
    70/98 = 70 × 40/98 × 40 = 2800/3920
  4. Add the two like fractions:
    1470/3920 + 2800/3920 = 1470 + 2800/3920 = 4270/3920
  5. 4270/3920 simplified gives 61/56
  6. So, 30/80 + 70/98 = 61/56
    In mixed form: 15/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com