Subtract 18/72 from 75/50
1st number: 1 25/50, 2nd number: 18/72
75/50 - 18/72 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 50 × 36 = 1800,
75/50 = 75 × 36/50 × 36 = 2700/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
18/72 = 18 × 25/72 × 25 = 450/1800 - Subtract the two like fractions:
2700/1800 - 450/1800 = 2700 - 450/1800 = 2250/1800 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/50-36/72 75/50-54/72 75/50-90/72