Add 54/14 and 30/18
1st number: 3 12/14, 2nd number: 1 12/18
54/14 + 30/18 is 116/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 14 × 9 = 126,
54/14 = 54 × 9/14 × 9 = 486/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126 - Add the two like fractions:
486/126 + 210/126 = 486 + 210/126 = 696/126 - 696/126 simplified gives 116/21
- So, 54/14 + 30/18 = 116/21
In mixed form: 511/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+60/18 54/28+30/18 54/14+30/36 54/14+90/18 54/42+30/18 54/14+30/54 54/70+30/18 54/14+30/90 54/98+30/18