Subtract 40/49 from 60/63, Solve 60/63

Subtract 40/49 from 60/63

60/63 - 40/49 is 20/147.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 49 is 441

Next, find the equivalent fraction of both fractional numbers with denominator 441
For the 1st fraction, since 63 × 7 = 441,
60/63 = 60 × 7/63 × 7 = 420/441
Likewise, for the 2nd fraction, since 49 × 9 = 441,
40/49 = 40 × 9/49 × 9 = 360/441
Subtract the two like fractions:
420/441 - 360/441 = 420 - 360/441 = 60/441
After reducing the fraction, the answer is 20/147

MathStep (Works offline)

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