Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/90 and 72/54

1st number: 70/90, 2nd number: 1 18/54

70/90 + 72/54 is 19/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 90 × 3 = 270,
    70/90 = 70 × 3/90 × 3 = 210/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    72/54 = 72 × 5/54 × 5 = 360/270
  4. Add the two like fractions:
    210/270 + 360/270 = 210 + 360/270 = 570/270
  5. 570/270 simplified gives 19/9
  6. So, 70/90 + 72/54 = 19/9
    In mixed form: 21/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com