Add 54/6 and 21/90
1st number: 9 0/6, 2nd number: 21/90
54/6 + 21/90 is 277/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
54/6 = 54 × 15/6 × 15 = 810/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
810/90 + 21/90 = 810 + 21/90 = 831/90 - 831/90 simplified gives 277/30
- So, 54/6 + 21/90 = 277/30
In mixed form: 97/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/6+42/90 54/12+21/90 54/6+63/90 54/18+21/90 54/30+21/90 54/42+21/90