Subtract 18/27 from 45/5, Solve 9 0/5

Subtract 18/27 from 45/5

1^st number: 9 0/5, 2^nd number: 18/27

45/5 - 18/27 is 25/3.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 5 × 27 = 135,
45/5 = 45 × 27/5 × 27 = 1215/135
Likewise, for the 2nd fraction, since 27 × 5 = 135,
18/27 = 18 × 5/27 × 5 = 90/135
Subtract the two like fractions:
1215/135 - 90/135 = 1215 - 90/135 = 1125/135
After reducing the fraction, the answer is 25/3
In mixed form: 81/3

MathStep (Works offline)

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