Subtract 90/12 from 1/50, Solve 1/50

Subtract 90/12 from 1/50

1^st number: 1/50, 2^nd number: 7 6/12

1/50 - 90/12 is -187/25.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 50 × 6 = 300,
1/50 = 1 × 6/50 × 6 = 6/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
90/12 = 90 × 25/12 × 25 = 2250/300
Subtract the two like fractions:
6/300 - 2250/300 = 6 - 2250/300 = -2244/300
After reducing the fraction, the answer is -187/25

MathStep (Works offline)

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