Add 54/45 and 10/63, Solve 1 9/45 + 10/63 as a fraction

Add 54/45 and 10/63

1^st number: 1 9/45, 2^nd number: 10/63

54/45 + 10/63 is 428/315.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 45 × 7 = 315,
54/45 = 54 × 7/45 × 7 = 378/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
10/63 = 10 × 5/63 × 5 = 50/315
Add the two like fractions:
378/315 + 50/315 = 378 + 50/315 = 428/315
So, 54/45 + 10/63 = 428/315
In mixed form: 1113/315

MathStep (Works offline)

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