Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/8 and 20/45

1st number: 9 0/8, 2nd number: 20/45

72/8 + 20/45 is 85/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    72/8 = 72 × 45/8 × 45 = 3240/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    20/45 = 20 × 8/45 × 8 = 160/360
  4. Add the two like fractions:
    3240/360 + 160/360 = 3240 + 160/360 = 3400/360
  5. 3400/360 simplified gives 85/9
  6. So, 72/8 + 20/45 = 85/9
    In mixed form: 94/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com