Subtract 5/50 from 5/42, Solve 5/42

Subtract 5/50 from 5/42

5/42 - 5/50 is 2/105.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 50 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 42 × 25 = 1050,
5/42 = 5 × 25/42 × 25 = 125/1050
Likewise, for the 2nd fraction, since 50 × 21 = 1050,
5/50 = 5 × 21/50 × 21 = 105/1050
Subtract the two like fractions:
125/1050 - 105/1050 = 125 - 105/1050 = 20/1050
After reducing the fraction, the answer is 2/105

MathStep (Works offline)

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