Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/2 and 10/80

1st number: 10 1/2, 2nd number: 10/80

21/2 + 10/80 is 85/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 2 × 40 = 80,
    21/2 = 21 × 40/2 × 40 = 840/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    10/80 = 10 × 1/80 × 1 = 10/80
  4. Add the two like fractions:
    840/80 + 10/80 = 840 + 10/80 = 850/80
  5. 850/80 simplified gives 85/8
  6. So, 21/2 + 10/80 = 85/8
    In mixed form: 105/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com