Add 5/90 and 21/36
5/90 + 21/36 is 23/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
5/90 = 5 × 2/90 × 2 = 10/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Add the two like fractions:
10/180 + 105/180 = 10 + 105/180 = 115/180 - 115/180 simplified gives 23/36
- So, 5/90 + 21/36 = 23/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90+21/36 5/90+42/36 5/90+21/72 15/90+21/36 5/90+63/36 25/90+21/36 35/90+21/36