Subtract 10/70 from 3/36, Solve 3/36

Subtract 10/70 from 3/36

3/36 - 10/70 is -5/84.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 36 × 35 = 1260,
3/36 = 3 × 35/36 × 35 = 105/1260
Likewise, for the 2nd fraction, since 70 × 18 = 1260,
10/70 = 10 × 18/70 × 18 = 180/1260
Subtract the two like fractions:
105/1260 - 180/1260 = 105 - 180/1260 = -75/1260
After reducing the fraction, the answer is -5/84

MathStep (Works offline)

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