Subtract 8/45 from 7/98
7/98 - 8/45 is -67/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 45 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
7/98 = 7 × 45/98 × 45 = 315/4410 - Likewise, for the 2nd fraction, since 45 × 98 = 4410,
8/45 = 8 × 98/45 × 98 = 784/4410 - Subtract the two like fractions:
315/4410 - 784/4410 = 315 - 784/4410 = -469/4410 - After reducing the fraction, the answer is -67/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98-8/45 7/98-16/45 7/98-8/90 21/98-8/45 7/98-24/45 35/98-8/45 7/98-40/45 49/98-8/45 7/98-56/45