Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/42 and 25/90

40/42 + 25/90 is 155/126.

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,
    40/42 = 40 × 15/42 × 15 = 600/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    25/90 = 25 × 7/90 × 7 = 175/630
  4. Add the two like fractions:
    600/630 + 175/630 = 600 + 175/630 = 775/630
  5. 775/630 simplified gives 155/126
  6. So, 40/42 + 25/90 = 155/126
    In mixed form: 129/126

MathStep (Works offline)

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

Related:

© everydaycalculation.com