Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/28 and 72/35

1st number: 1 2/28, 2nd number: 2 2/35

30/28 + 72/35 is 219/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 35 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 28 × 5 = 140,
    30/28 = 30 × 5/28 × 5 = 150/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    72/35 = 72 × 4/35 × 4 = 288/140
  4. Add the two like fractions:
    150/140 + 288/140 = 150 + 288/140 = 438/140
  5. 438/140 simplified gives 219/70
  6. So, 30/28 + 72/35 = 219/70
    In mixed form: 39/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com