Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/25 and 25/21

1st number: 2 20/25, 2nd number: 1 4/21

70/25 + 25/21 is 419/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 21 is 525

    Next, find the equivalent fraction of both fractional numbers with denominator 525
  2. For the 1st fraction, since 25 × 21 = 525,
    70/25 = 70 × 21/25 × 21 = 1470/525
  3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
    25/21 = 25 × 25/21 × 25 = 625/525
  4. Add the two like fractions:
    1470/525 + 625/525 = 1470 + 625/525 = 2095/525
  5. 2095/525 simplified gives 419/105
  6. So, 70/25 + 25/21 = 419/105
    In mixed form: 3104/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com