Subtract 8/45 from 40/10
1st number: 4 0/10, 2nd number: 8/45
40/10 - 8/45 is 172/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
40/10 = 40 × 9/10 × 9 = 360/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
8/45 = 8 × 2/45 × 2 = 16/90 - Subtract the two like fractions:
360/90 - 16/90 = 360 - 16/90 = 344/90 - After reducing the fraction, the answer is 172/45
- In mixed form: 337/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10-8/45 40/10-16/45 40/20-8/45 40/10-8/90 40/10-24/45 40/30-8/45 40/10-40/45 40/50-8/45 40/10-56/45 40/70-8/45