Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/45 and 14/21

1st number: 2 0/45, 2nd number: 14/21

90/45 + 14/21 is 8/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 21 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 45 × 7 = 315,
    90/45 = 90 × 7/45 × 7 = 630/315
  3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
    14/21 = 14 × 15/21 × 15 = 210/315
  4. Add the two like fractions:
    630/315 + 210/315 = 630 + 210/315 = 840/315
  5. 840/315 simplified gives 8/3
  6. So, 90/45 + 14/21 = 8/3
    In mixed form: 22/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com