Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/45 and 70/30

1st number: 42/45, 2nd number: 2 10/30

42/45 + 70/30 is 49/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 30 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    42/45 = 42 × 2/45 × 2 = 84/90
  3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
    70/30 = 70 × 3/30 × 3 = 210/90
  4. Add the two like fractions:
    84/90 + 210/90 = 84 + 210/90 = 294/90
  5. 294/90 simplified gives 49/15
  6. So, 42/45 + 70/30 = 49/15
    In mixed form: 34/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com