Subtract 10/9 from 45/90
1st number: 45/90, 2nd number: 1 1/9
45/90 - 10/9 is -11/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
45/90 = 45 × 1/90 × 1 = 45/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
10/9 = 10 × 10/9 × 10 = 100/90 - Subtract the two like fractions:
45/90 - 100/90 = 45 - 100/90 = -55/90 - After reducing the fraction, the answer is -11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 45/90-20/9 45/90-10/18 45/90-30/9 45/90-10/27 45/90-50/9 45/90-10/45 45/90-70/9 45/90-10/63