Add 9/16 and 21/9
1st number: 9/16, 2nd number: 2 3/9
9/16 + 21/9 is 139/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
9/16 = 9 × 9/16 × 9 = 81/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
21/9 = 21 × 16/9 × 16 = 336/144 - Add the two like fractions:
81/144 + 336/144 = 81 + 336/144 = 417/144 - 417/144 simplified gives 139/48
- So, 9/16 + 21/9 = 139/48
In mixed form: 243/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/16+21/9 9/16+42/9 9/32+21/9 9/16+21/18 27/16+21/9 9/16+63/9 9/48+21/9 9/16+21/27 45/16+21/9 9/80+21/9 9/16+21/45 63/16+21/9 9/16+21/63