Subtract 2/90 from 98/80
1st number: 1 18/80, 2nd number: 2/90
98/80 - 2/90 is 433/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
98/80 = 98 × 9/80 × 9 = 882/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
2/90 = 2 × 8/90 × 8 = 16/720 - Subtract the two like fractions:
882/720 - 16/720 = 882 - 16/720 = 866/720 - After reducing the fraction, the answer is 433/360
- In mixed form: 173/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/80-4/90 98/80-6/90 98/80-10/90 98/80-14/90