Subtract 40/80 from 9/2
1st number: 4 1/2, 2nd number: 40/80
9/2 - 40/80 is 4/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
9/2 = 9 × 40/2 × 40 = 360/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
40/80 = 40 × 1/80 × 1 = 40/80 - Subtract the two like fractions:
360/80 - 40/80 = 360 - 40/80 = 320/80 - After reducing the fraction, the answer is 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/2-40/80 9/4-40/80 27/2-40/80 9/6-40/80 45/2-40/80 9/10-40/80 63/2-40/80 9/14-40/80