Subtract 15/90 from 16/98
16/98 - 15/90 is -1/294.
Steps for subtracting fractions
- 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,
16/98 = 16 × 45/98 × 45 = 720/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
15/90 = 15 × 49/90 × 49 = 735/4410 - Subtract the two like fractions:
720/4410 - 735/4410 = 720 - 735/4410 = -15/4410 - After reducing the fraction, the answer is -1/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/98-15/90 16/98-30/90 48/98-15/90 16/98-45/90 80/98-15/90 16/98-75/90