Subtract 7/70 from 7/12, Solve 7/12

Subtract 7/70 from 7/12

7/12 - 7/70 is 29/60.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
7/12 = 7 × 35/12 × 35 = 245/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
7/70 = 7 × 6/70 × 6 = 42/420
Subtract the two like fractions:
245/420 - 42/420 = 245 - 42/420 = 203/420
After reducing the fraction, the answer is 29/60

MathStep (Works offline)

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