Add 21/5 and 36/7
1st number: 4 1/5, 2nd number: 5 1/7
21/5 + 36/7 is 327/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
21/5 = 21 × 7/5 × 7 = 147/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
36/7 = 36 × 5/7 × 5 = 180/35 - Add the two like fractions:
147/35 + 180/35 = 147 + 180/35 = 327/35 - So, 21/5 + 36/7 = 327/35
In mixed form: 912/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+36/7 21/5+72/7 21/10+36/7 21/5+36/14 63/5+36/7 21/15+36/7 21/5+36/21 21/25+36/7 21/5+36/35 21/35+36/7 21/5+36/49