Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/10 and 21/45

4/10 + 21/45 is 13/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 45 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    4/10 = 4 × 9/10 × 9 = 36/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    21/45 = 21 × 2/45 × 2 = 42/90
  4. Add the two like fractions:
    36/90 + 42/90 = 36 + 42/90 = 78/90
  5. 78/90 simplified gives 13/15
  6. So, 4/10 + 21/45 = 13/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com