Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/42 and 7/30

28/42 + 7/30 is 9/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    28/42 = 28 × 5/42 × 5 = 140/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    7/30 = 7 × 7/30 × 7 = 49/210
  4. Add the two like fractions:
    140/210 + 49/210 = 140 + 49/210 = 189/210
  5. 189/210 simplified gives 9/10
  6. So, 28/42 + 7/30 = 9/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com