Subtract 9/36 from 72/4
1st number: 18 0/4, 2nd number: 9/36
72/4 - 9/36 is 71/4.
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,
72/4 = 72 × 9/4 × 9 = 648/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
9/36 = 9 × 1/36 × 1 = 9/36 - Subtract the two like fractions:
648/36 - 9/36 = 648 - 9/36 = 639/36 - After reducing the fraction, the answer is 71/4
- In mixed form: 173/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-18/36 72/8-9/36 72/4-9/72 72/4-27/36 72/12-9/36 72/4-45/36 72/20-9/36 72/4-63/36 72/28-9/36