Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 35/21 and 63/90

1st number: 1 14/21, 2nd number: 63/90

35/21 + 63/90 is 71/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 21 × 30 = 630,
    35/21 = 35 × 30/21 × 30 = 1050/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    63/90 = 63 × 7/90 × 7 = 441/630
  4. Add the two like fractions:
    1050/630 + 441/630 = 1050 + 441/630 = 1491/630
  5. 1491/630 simplified gives 71/30
  6. So, 35/21 + 63/90 = 71/30
    In mixed form: 211/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com