Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/45 and 84/72

1st number: 40/45, 2nd number: 1 12/72

40/45 + 84/72 is 37/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 72 is 360
  2. For the 1st fraction, since 45 × 8 = 360,
    40/45 = 40 × 8/45 × 8 = 320/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    84/72 = 84 × 5/72 × 5 = 420/360
  4. Add the two fractions:
    320/360 + 420/360 = 320 + 420/360 = 740/360
  5. 740/360 simplified gives 37/18
  6. So, 40/45 + 84/72 = 37/18
    In mixed form: 21/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com