Subtract 75/27 from 50/40
1st number: 1 10/40, 2nd number: 2 21/27
50/40 - 75/27 is -55/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
50/40 = 50 × 27/40 × 27 = 1350/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
75/27 = 75 × 40/27 × 40 = 3000/1080 - Subtract the two like fractions:
1350/1080 - 3000/1080 = 1350 - 3000/1080 = -1650/1080 - After reducing the fraction, the answer is -55/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80-75/27 50/40-75/54 50/40-75/81