Add 20/28 and 9/36
20/28 + 9/36 is 27/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
20/28 = 20 × 9/28 × 9 = 180/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
9/36 = 9 × 7/36 × 7 = 63/252 - Add the two like fractions:
180/252 + 63/252 = 180 + 63/252 = 243/252 - 243/252 simplified gives 27/28
- So, 20/28 + 9/36 = 27/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28+9/36 20/28+18/36 20/56+9/36 20/28+9/72 60/28+9/36 20/28+27/36 20/84+9/36 20/28+45/36 20/28+63/36