Subtract 40/50 from 27/18
1st number: 1 9/18, 2nd number: 40/50
27/18 - 40/50 is 7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
27/18 = 27 × 25/18 × 25 = 675/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
40/50 = 40 × 9/50 × 9 = 360/450 - Subtract the two like fractions:
675/450 - 360/450 = 675 - 360/450 = 315/450 - After reducing the fraction, the answer is 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18-40/50 27/18-80/50 27/36-40/50 81/18-40/50 27/54-40/50 27/90-40/50