Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/7 and 84/45

1st number: 2 6/7, 2nd number: 1 39/45

20/7 + 84/45 is 496/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 7 × 45 = 315,
    20/7 = 20 × 45/7 × 45 = 900/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    84/45 = 84 × 7/45 × 7 = 588/315
  4. Add the two like fractions:
    900/315 + 588/315 = 900 + 588/315 = 1488/315
  5. 1488/315 simplified gives 496/105
  6. So, 20/7 + 84/45 = 496/105
    In mixed form: 476/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com