Add 45/2 and 21/54
1st number: 22 1/2, 2nd number: 21/54
45/2 + 21/54 is 206/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
45/2 = 45 × 27/2 × 27 = 1215/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
21/54 = 21 × 1/54 × 1 = 21/54 - Add the two like fractions:
1215/54 + 21/54 = 1215 + 21/54 = 1236/54 - 1236/54 simplified gives 206/9
- So, 45/2 + 21/54 = 206/9
In mixed form: 228/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2+21/54 45/2+42/54 45/4+21/54 45/2+63/54 45/6+21/54 45/10+21/54 45/14+21/54