Subtract 15/25 from 18/4
1st number: 4 2/4, 2nd number: 15/25
18/4 - 15/25 is 39/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
18/4 = 18 × 25/4 × 25 = 450/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
15/25 = 15 × 4/25 × 4 = 60/100 - Subtract the two like fractions:
450/100 - 60/100 = 450 - 60/100 = 390/100 - After reducing the fraction, the answer is 39/10
- In mixed form: 39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-15/25 18/4-30/25 18/8-15/25 18/4-15/50 54/4-15/25 18/4-45/25 18/12-15/25 18/4-15/75 90/4-15/25 18/4-75/25 18/20-15/25 18/28-15/25