Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/21 and 16/45

1st number: 1 19/21, 2nd number: 16/45

40/21 + 16/45 is 712/315.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 21 × 15 = 315,
    40/21 = 40 × 15/21 × 15 = 600/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    16/45 = 16 × 7/45 × 7 = 112/315
  4. Add the two like fractions:
    600/315 + 112/315 = 600 + 112/315 = 712/315
  5. So, 40/21 + 16/45 = 712/315
    In mixed form: 282/315

MathStep (Works offline)

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

Related:

© everydaycalculation.com