Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/20 and 35/25

1st number: 1 1/20, 2nd number: 1 10/25

21/20 + 35/25 is 49/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 25 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 20 × 5 = 100,
    21/20 = 21 × 5/20 × 5 = 105/100
  3. Likewise, for the 2nd fraction, since 25 × 4 = 100,
    35/25 = 35 × 4/25 × 4 = 140/100
  4. Add the two like fractions:
    105/100 + 140/100 = 105 + 140/100 = 245/100
  5. 245/100 simplified gives 49/20
  6. So, 21/20 + 35/25 = 49/20
    In mixed form: 29/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com