Subtract 54/60 from 48/84, Solve 48/84

Subtract 54/60 from 48/84

48/84 - 54/60 is -23/70.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
48/84 = 48 × 5/84 × 5 = 240/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
54/60 = 54 × 7/60 × 7 = 378/420
Subtract the two like fractions:
240/420 - 378/420 = 240 - 378/420 = -138/420
After reducing the fraction, the answer is -23/70

MathStep (Works offline)

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