Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/90 and 7/84

40/90 + 7/84 is 19/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 84 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 90 × 14 = 1260,
    40/90 = 40 × 14/90 × 14 = 560/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    7/84 = 7 × 15/84 × 15 = 105/1260
  4. Add the two like fractions:
    560/1260 + 105/1260 = 560 + 105/1260 = 665/1260
  5. 665/1260 simplified gives 19/36
  6. So, 40/90 + 7/84 = 19/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com