Add 54/30 and 21/27
1st number: 1 24/30, 2nd number: 21/27
54/30 + 21/27 is 116/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
54/30 = 54 × 9/30 × 9 = 486/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
21/27 = 21 × 10/27 × 10 = 210/270 - Add the two like fractions:
486/270 + 210/270 = 486 + 210/270 = 696/270 - 696/270 simplified gives 116/45
- So, 54/30 + 21/27 = 116/45
In mixed form: 226/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30+42/27 54/60+21/27 54/30+21/54 54/30+63/27 54/90+21/27 54/30+21/81