Subtract 9/72 from 28/5
1st number: 5 3/5, 2nd number: 9/72
28/5 - 9/72 is 219/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
28/5 = 28 × 72/5 × 72 = 2016/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Subtract the two like fractions:
2016/360 - 45/360 = 2016 - 45/360 = 1971/360 - After reducing the fraction, the answer is 219/40
- In mixed form: 519/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5-9/72 28/5-18/72 28/10-9/72 84/5-9/72 28/5-27/72 28/15-9/72 28/5-45/72 28/25-9/72 28/5-63/72 28/35-9/72