Subtract 70/90 from 98/49
1st number: 2 0/49, 2nd number: 70/90
98/49 - 70/90 is 11/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
98/49 = 98 × 90/49 × 90 = 8820/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
70/90 = 70 × 49/90 × 49 = 3430/4410 - Subtract the two like fractions:
8820/4410 - 3430/4410 = 8820 - 3430/4410 = 5390/4410 - After reducing the fraction, the answer is 11/9
- In mixed form: 12/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: