Subtract 45/40 from 10/9
1st number: 1 1/9, 2nd number: 1 5/40
10/9 - 45/40 is -1/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
10/9 = 10 × 40/9 × 40 = 400/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
45/40 = 45 × 9/40 × 9 = 405/360 - Subtract the two like fractions:
400/360 - 405/360 = 400 - 405/360 = -5/360 - After reducing the fraction, the answer is -1/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/9-45/40 10/9-90/40 10/18-45/40 10/9-45/80 30/9-45/40 10/27-45/40 50/9-45/40 10/45-45/40 70/9-45/40 10/63-45/40