Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/21 and 70/75

18/21 + 70/75 is 188/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 75 is 525

    Next, find the equivalent fraction of both fractional numbers with denominator 525
  2. For the 1st fraction, since 21 × 25 = 525,
    18/21 = 18 × 25/21 × 25 = 450/525
  3. Likewise, for the 2nd fraction, since 75 × 7 = 525,
    70/75 = 70 × 7/75 × 7 = 490/525
  4. Add the two like fractions:
    450/525 + 490/525 = 450 + 490/525 = 940/525
  5. 940/525 simplified gives 188/105
  6. So, 18/21 + 70/75 = 188/105
    In mixed form: 183/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com