Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 35/42 and 40/90

35/42 + 40/90 is 23/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    35/42 = 35 × 15/42 × 15 = 525/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    40/90 = 40 × 7/90 × 7 = 280/630
  4. Add the two like fractions:
    525/630 + 280/630 = 525 + 280/630 = 805/630
  5. 805/630 simplified gives 23/18
  6. So, 35/42 + 40/90 = 23/18
    In mixed form: 15/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com