Subtract 6/18 from 27/70, Solve 27/70

Subtract 6/18 from 27/70

27/70 - 6/18 is 11/210.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
27/70 = 27 × 9/70 × 9 = 243/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
6/18 = 6 × 35/18 × 35 = 210/630
Subtract the two like fractions:
243/630 - 210/630 = 243 - 210/630 = 33/630
After reducing the fraction, the answer is 11/210

MathStep (Works offline)

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