Subtract 30/70 from 50/98, Solve 50/98

Subtract 30/70 from 50/98

50/98 - 30/70 is 4/49.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 98 × 5 = 490,
50/98 = 50 × 5/98 × 5 = 250/490
Likewise, for the 2nd fraction, since 70 × 7 = 490,
30/70 = 30 × 7/70 × 7 = 210/490
Subtract the two like fractions:
250/490 - 210/490 = 250 - 210/490 = 40/490
After reducing the fraction, the answer is 4/49

MathStep (Works offline)

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