Subtract 10/90 from 80/8
1st number: 10 0/8, 2nd number: 10/90
80/8 - 10/90 is 89/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
80/8 = 80 × 45/8 × 45 = 3600/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
10/90 = 10 × 4/90 × 4 = 40/360 - Subtract the two like fractions:
3600/360 - 40/360 = 3600 - 40/360 = 3560/360 - After reducing the fraction, the answer is 89/9
- In mixed form: 98/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8-20/90 80/16-10/90 80/8-30/90 80/24-10/90 80/8-50/90 80/40-10/90 80/8-70/90 80/56-10/90