Subtract 54/70 from 27/48, Solve 27/48

Subtract 54/70 from 27/48

27/48 - 54/70 is -117/560.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 48 × 35 = 1680,
27/48 = 27 × 35/48 × 35 = 945/1680
Likewise, for the 2nd fraction, since 70 × 24 = 1680,
54/70 = 54 × 24/70 × 24 = 1296/1680
Subtract the two like fractions:
945/1680 - 1296/1680 = 945 - 1296/1680 = -351/1680
After reducing the fraction, the answer is -117/560

MathStep (Works offline)

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