Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/45 and 21/14

1st number: 1 36/45, 2nd number: 1 7/14

81/45 + 21/14 is 33/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 14 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 45 × 14 = 630,
    81/45 = 81 × 14/45 × 14 = 1134/630
  3. Likewise, for the 2nd fraction, since 14 × 45 = 630,
    21/14 = 21 × 45/14 × 45 = 945/630
  4. Add the two like fractions:
    1134/630 + 945/630 = 1134 + 945/630 = 2079/630
  5. 2079/630 simplified gives 33/10
  6. So, 81/45 + 21/14 = 33/10
    In mixed form: 33/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com