Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/5 and 36/9

1st number: 4 1/5, 2nd number: 4 0/9

21/5 + 36/9 is 41/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 9 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 5 × 9 = 45,
    21/5 = 21 × 9/5 × 9 = 189/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    36/9 = 36 × 5/9 × 5 = 180/45
  4. Add the two like fractions:
    189/45 + 180/45 = 189 + 180/45 = 369/45
  5. 369/45 simplified gives 41/5
  6. So, 21/5 + 36/9 = 41/5
    In mixed form: 81/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com