Subtract 16/25 from 6/42, Solve 6/42

Subtract 16/25 from 6/42

6/42 - 16/25 is -87/175.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 42 × 25 = 1050,
6/42 = 6 × 25/42 × 25 = 150/1050
Likewise, for the 2nd fraction, since 25 × 42 = 1050,
16/25 = 16 × 42/25 × 42 = 672/1050
Subtract the two like fractions:
150/1050 - 672/1050 = 150 - 672/1050 = -522/1050
After reducing the fraction, the answer is -87/175

MathStep (Works offline)

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