Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/90 and 28/70

45/90 + 28/70 is 9/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    45/90 = 45 × 7/90 × 7 = 315/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    28/70 = 28 × 9/70 × 9 = 252/630
  4. Add the two like fractions:
    315/630 + 252/630 = 315 + 252/630 = 567/630
  5. 567/630 simplified gives 9/10
  6. So, 45/90 + 28/70 = 9/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com