Add 30/63 and 48/9, Solve 30/63 + 5 3/9 as a fraction

Add 30/63 and 48/9

1^st number: 30/63, 2^nd number: 5 3/9

30/63 + 48/9 is 122/21.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 63 × 1 = 63,
30/63 = 30 × 1/63 × 1 = 30/63
Likewise, for the 2nd fraction, since 9 × 7 = 63,
48/9 = 48 × 7/9 × 7 = 336/63
Add the two like fractions:
30/63 + 336/63 = 30 + 336/63 = 366/63
366/63 simplified gives 122/21
So, 30/63 + 48/9 = 122/21
In mixed form: 517/21

MathStep (Works offline)

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