Add 21/5 and 7/36
1st number: 4 1/5, 2nd number: 7/36
21/5 + 7/36 is 791/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 5 × 36 = 180,
21/5 = 21 × 36/5 × 36 = 756/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
7/36 = 7 × 5/36 × 5 = 35/180 - Add the two like fractions:
756/180 + 35/180 = 756 + 35/180 = 791/180 - So, 21/5 + 7/36 = 791/180
In mixed form: 471/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+7/36 21/5+14/36 21/10+7/36 21/5+7/72 63/5+7/36 21/5+21/36 21/15+7/36 21/5+35/36 21/25+7/36 21/5+49/36 21/35+7/36