Add 16/45 and 21/16
1st number: 16/45, 2nd number: 1 5/16
16/45 + 21/16 is 1201/720.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
16/45 = 16 × 16/45 × 16 = 256/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720 - Add the two like fractions:
256/720 + 945/720 = 256 + 945/720 = 1201/720 - So, 16/45 + 21/16 = 1201/720
In mixed form: 1481/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/45+21/16 16/45+42/16 16/90+21/16 16/45+21/32 48/45+21/16 16/45+63/16 16/45+21/48 80/45+21/16 16/45+21/80