Subtract 50/45 from 12/27, Solve 12/27

Subtract 50/45 from 12/27

1^st number: 12/27, 2^nd number: 1 5/45

12/27 - 50/45 is -2/3.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 45 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 27 × 5 = 135,
12/27 = 12 × 5/27 × 5 = 60/135
Likewise, for the 2nd fraction, since 45 × 3 = 135,
50/45 = 50 × 3/45 × 3 = 150/135
Subtract the two like fractions:
60/135 - 150/135 = 60 - 150/135 = -90/135
After reducing the fraction, the answer is -2/3

MathStep (Works offline)

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