Add 20/84 and 3/36
20/84 + 3/36 is 9/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
3/36 = 3 × 7/36 × 7 = 21/252 - Add the two like fractions:
60/252 + 21/252 = 60 + 21/252 = 81/252 - 81/252 simplified gives 9/28
- So, 20/84 + 3/36 = 9/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84+3/36 20/84+6/36 20/84+3/72 60/84+3/36 20/84+9/36 20/84+15/36 20/84+21/36