Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/2 and 75/5

1st number: 10 1/2, 2nd number: 15 0/5

21/2 + 75/5 is 51/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 5 is 10

    Next, find the equivalent fraction of both fractional numbers with denominator 10
  2. For the 1st fraction, since 2 × 5 = 10,
    21/2 = 21 × 5/2 × 5 = 105/10
  3. Likewise, for the 2nd fraction, since 5 × 2 = 10,
    75/5 = 75 × 2/5 × 2 = 150/10
  4. Add the two like fractions:
    105/10 + 150/10 = 105 + 150/10 = 255/10
  5. 255/10 simplified gives 51/2
  6. So, 21/2 + 75/5 = 51/2
    In mixed form: 251/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com