Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/45 and 30/4

1st number: 21/45, 2nd number: 7 2/4

21/45 + 30/4 is 239/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 4 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    21/45 = 21 × 4/45 × 4 = 84/180
  3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
    30/4 = 30 × 45/4 × 45 = 1350/180
  4. Add the two like fractions:
    84/180 + 1350/180 = 84 + 1350/180 = 1434/180
  5. 1434/180 simplified gives 239/30
  6. So, 21/45 + 30/4 = 239/30
    In mixed form: 729/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com