Subtract 5/6 from 40/45
40/45 - 5/6 is 1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
40/45 = 40 × 2/45 × 2 = 80/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
5/6 = 5 × 15/6 × 15 = 75/90 - Subtract the two like fractions:
80/90 - 75/90 = 80 - 75/90 = 5/90 - After reducing the fraction, the answer is 1/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45-5/6 40/45-10/6 40/90-5/6 40/45-5/12 40/45-15/6 40/45-5/18 40/45-25/6 40/45-5/30 40/45-35/6 40/45-5/42