Add 9/5 and 90/63, Solve 1 4/5 + 1 27/63 as a fraction

Add 9/5 and 90/63

1^st number: 1 4/5, 2^nd number: 1 27/63

9/5 + 90/63 is 113/35.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 5 × 63 = 315,
9/5 = 9 × 63/5 × 63 = 567/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
90/63 = 90 × 5/63 × 5 = 450/315
Add the two like fractions:
567/315 + 450/315 = 567 + 450/315 = 1017/315
1017/315 simplified gives 113/35
So, 9/5 + 90/63 = 113/35
In mixed form: 38/35

MathStep (Works offline)

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