Subtract 15/36 from 30/4
1st number: 7 2/4, 2nd number: 15/36
30/4 - 15/36 is 85/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
30/4 = 30 × 9/4 × 9 = 270/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
15/36 = 15 × 1/36 × 1 = 15/36 - Subtract the two like fractions:
270/36 - 15/36 = 270 - 15/36 = 255/36 - After reducing the fraction, the answer is 85/12
- In mixed form: 71/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4-15/36 30/4-30/36 30/8-15/36 30/4-15/72 90/4-15/36 30/4-45/36 30/12-15/36 30/4-75/36 30/20-15/36 30/28-15/36