Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/45 and 15/7

1st number: 1 25/45, 2nd number: 2 1/7

70/45 + 15/7 is 233/63.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 45 × 7 = 315,
    70/45 = 70 × 7/45 × 7 = 490/315
  3. Likewise, for the 2nd fraction, since 7 × 45 = 315,
    15/7 = 15 × 45/7 × 45 = 675/315
  4. Add the two like fractions:
    490/315 + 675/315 = 490 + 675/315 = 1165/315
  5. 1165/315 simplified gives 233/63
  6. So, 70/45 + 15/7 = 233/63
    In mixed form: 344/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com