Add 21/5 and 16/36
1st number: 4 1/5, 2nd number: 16/36
21/5 + 16/36 is 209/45.
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,
16/36 = 16 × 5/36 × 5 = 80/180 - Add the two like fractions:
756/180 + 80/180 = 756 + 80/180 = 836/180 - 836/180 simplified gives 209/45
- So, 21/5 + 16/36 = 209/45
In mixed form: 429/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5+16/36 21/5+32/36 21/10+16/36 21/5+16/72 63/5+16/36 21/5+48/36 21/15+16/36 21/5+80/36 21/25+16/36 21/35+16/36