Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/14 and 40/90

1st number: 3 0/14, 2nd number: 40/90

42/14 + 40/90 is 31/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 90 is 630
  2. For the 1st fraction, since 14 × 45 = 630,
    42/14 = 42 × 45/14 × 45 = 1890/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    40/90 = 40 × 7/90 × 7 = 280/630
  4. Add the two fractions:
    1890/630 + 280/630 = 1890 + 280/630 = 2170/630
  5. 2170/630 simplified gives 31/9
  6. So, 42/14 + 40/90 = 31/9
    In mixed form: 34/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com