Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/42 and 70/90

1/42 + 70/90 is 101/126.

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,
    1/42 = 1 × 15/42 × 15 = 15/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    70/90 = 70 × 7/90 × 7 = 490/630
  4. Add the two like fractions:
    15/630 + 490/630 = 15 + 490/630 = 505/630
  5. 505/630 simplified gives 101/126
  6. So, 1/42 + 70/90 = 101/126

MathStep (Works offline)

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

Related:

© everydaycalculation.com