Subtract 18/90 from 36/98, Solve 36/98

Subtract 18/90 from 36/98

36/98 - 18/90 is 41/245.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 90 is 4410

Next, find the equivalent fraction of both fractional numbers with denominator 4410
For the 1st fraction, since 98 × 45 = 4410,
36/98 = 36 × 45/98 × 45 = 1620/4410
Likewise, for the 2nd fraction, since 90 × 49 = 4410,
18/90 = 18 × 49/90 × 49 = 882/4410
Subtract the two like fractions:
1620/4410 - 882/4410 = 1620 - 882/4410 = 738/4410
After reducing the fraction, the answer is 41/245

MathStep (Works offline)

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