Add 21/9 and 9/54
1st number: 2 3/9, 2nd number: 9/54
21/9 + 9/54 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 9 × 6 = 54,
21/9 = 21 × 6/9 × 6 = 126/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
9/54 = 9 × 1/54 × 1 = 9/54 - Add the two like fractions:
126/54 + 9/54 = 126 + 9/54 = 135/54 - 135/54 simplified gives 5/2
- So, 21/9 + 9/54 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9+9/54 21/9+18/54 21/18+9/54 63/9+9/54 21/9+27/54 21/27+9/54 21/9+45/54 21/45+9/54 21/9+63/54 21/63+9/54