Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 10/90 and 21/4

1st number: 10/90, 2nd number: 5 1/4

10/90 + 21/4 is 193/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 4 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    10/90 = 10 × 2/90 × 2 = 20/180
  3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
    21/4 = 21 × 45/4 × 45 = 945/180
  4. Add the two like fractions:
    20/180 + 945/180 = 20 + 945/180 = 965/180
  5. 965/180 simplified gives 193/36
  6. So, 10/90 + 21/4 = 193/36
    In mixed form: 513/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com