Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 8/45 and 45/21

1st number: 8/45, 2nd number: 2 3/21

8/45 + 45/21 is 731/315.

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,
    8/45 = 8 × 7/45 × 7 = 56/315
  3. Likewise, for the 2nd fraction, since 21 × 15 = 315,
    45/21 = 45 × 15/21 × 15 = 675/315
  4. Add the two like fractions:
    56/315 + 675/315 = 56 + 675/315 = 731/315
  5. So, 8/45 + 45/21 = 731/315
    In mixed form: 2101/315

MathStep (Works offline)

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

Related:

© everydaycalculation.com