Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/42 and 18/90

1/42 + 18/90 is 47/210.

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,
    1/42 = 1 × 15/42 × 15 = 15/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    18/90 = 18 × 7/90 × 7 = 126/630
  4. Add the two like fractions:
    15/630 + 126/630 = 15 + 126/630 = 141/630
  5. 141/630 simplified gives 47/210
  6. So, 1/42 + 18/90 = 47/210

MathStep (Works offline)

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

Related:

© everydaycalculation.com