Add 84/54 and 48/63, Solve 1 30/54 + 48/63 as a fraction

Add 84/54 and 48/63

1^st number: 1 30/54, 2^nd number: 48/63

84/54 + 48/63 is 146/63.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
84/54 = 84 × 7/54 × 7 = 588/378
Likewise, for the 2nd fraction, since 63 × 6 = 378,
48/63 = 48 × 6/63 × 6 = 288/378
Add the two like fractions:
588/378 + 288/378 = 588 + 288/378 = 876/378
876/378 simplified gives 146/63
So, 84/54 + 48/63 = 146/63
In mixed form: 220/63

MathStep (Works offline)

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