Subtract 6/5 from 72/4
1st number: 18 0/4, 2nd number: 1 1/5
72/4 - 6/5 is 84/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
72/4 = 72 × 5/4 × 5 = 360/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
6/5 = 6 × 4/5 × 4 = 24/20 - Subtract the two like fractions:
360/20 - 24/20 = 360 - 24/20 = 336/20 - After reducing the fraction, the answer is 84/5
- In mixed form: 164/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/4-12/5 72/8-6/5 72/4-6/10 72/4-18/5 72/12-6/5 72/4-6/15 72/4-30/5 72/20-6/5 72/4-6/25 72/4-42/5 72/28-6/5 72/4-6/35