Subtract 18/50 from 18/15
1st number: 1 3/15, 2nd number: 18/50
18/15 - 18/50 is 21/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 15 × 10 = 150,
18/15 = 18 × 10/15 × 10 = 180/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
18/50 = 18 × 3/50 × 3 = 54/150 - Subtract the two like fractions:
180/150 - 54/150 = 180 - 54/150 = 126/150 - After reducing the fraction, the answer is 21/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15-18/50 18/15-36/50 18/30-18/50 54/15-18/50 18/15-54/50 18/45-18/50 90/15-18/50 18/15-90/50 18/75-18/50