Add 16/9 and 21/45
1st number: 1 7/9, 2nd number: 21/45
16/9 + 21/45 is 101/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
16/9 = 16 × 5/9 × 5 = 80/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
21/45 = 21 × 1/45 × 1 = 21/45 - Add the two like fractions:
80/45 + 21/45 = 80 + 21/45 = 101/45 - So, 16/9 + 21/45 = 101/45
In mixed form: 211/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/9+21/45 16/9+42/45 16/18+21/45 16/9+21/90 48/9+21/45 16/9+63/45 16/27+21/45 80/9+21/45 16/45+21/45 16/63+21/45