Add 9/7 and 30/54, Solve 1 2/7 + 30/54 as a fraction

Add 9/7 and 30/54

1^st number: 1 2/7, 2^nd number: 30/54

9/7 + 30/54 is 116/63.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
9/7 = 9 × 54/7 × 54 = 486/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
30/54 = 30 × 7/54 × 7 = 210/378
Add the two like fractions:
486/378 + 210/378 = 486 + 210/378 = 696/378
696/378 simplified gives 116/63
So, 9/7 + 30/54 = 116/63
In mixed form: 153/63

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad