Subtract 6/50 from 4/42, Solve 4/42

Subtract 6/50 from 4/42

4/42 - 6/50 is -13/525.

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,
4/42 = 4 × 25/42 × 25 = 100/1050
Likewise, for the 2nd fraction, since 50 × 21 = 1050,
6/50 = 6 × 21/50 × 21 = 126/1050
Subtract the two like fractions:
100/1050 - 126/1050 = 100 - 126/1050 = -26/1050
After reducing the fraction, the answer is -13/525

MathStep (Works offline)

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