Subtract 9/42 from 45/98, Solve 45/98

Subtract 9/42 from 45/98

45/98 - 9/42 is 12/49.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 42 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 98 × 3 = 294,
45/98 = 45 × 3/98 × 3 = 135/294
Likewise, for the 2nd fraction, since 42 × 7 = 294,
9/42 = 9 × 7/42 × 7 = 63/294
Subtract the two like fractions:
135/294 - 63/294 = 135 - 63/294 = 72/294
After reducing the fraction, the answer is 12/49

MathStep (Works offline)

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