Add 30/48 and 21/9
1st number: 30/48, 2nd number: 2 3/9
30/48 + 21/9 is 71/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
30/48 = 30 × 3/48 × 3 = 90/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
21/9 = 21 × 16/9 × 16 = 336/144 - Add the two like fractions:
90/144 + 336/144 = 90 + 336/144 = 426/144 - 426/144 simplified gives 71/24
- So, 30/48 + 21/9 = 71/24
In mixed form: 223/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/48+21/9 30/48+42/9 30/96+21/9 30/48+21/18 90/48+21/9 30/48+63/9 30/48+21/27 30/48+21/45 30/48+21/63