Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/35 and 12/42

30/35 + 12/42 is 8/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 35 × 6 = 210,
    30/35 = 30 × 6/35 × 6 = 180/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    12/42 = 12 × 5/42 × 5 = 60/210
  4. Add the two like fractions:
    180/210 + 60/210 = 180 + 60/210 = 240/210
  5. 240/210 simplified gives 8/7
  6. So, 30/35 + 12/42 = 8/7
    In mixed form: 11/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com