Add 45/3 and 90/63, Solve 15 0/3 + 1 27/63 as a fraction

Add 45/3 and 90/63

1^st number: 15 0/3, 2^nd number: 1 27/63

45/3 + 90/63 is 115/7.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 3 × 21 = 63,
45/3 = 45 × 21/3 × 21 = 945/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
90/63 = 90 × 1/63 × 1 = 90/63
Add the two like fractions:
945/63 + 90/63 = 945 + 90/63 = 1035/63
1035/63 simplified gives 115/7
So, 45/3 + 90/63 = 115/7
In mixed form: 163/7

MathStep (Works offline)

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