Subtract 15/72 from 30/10
1st number: 3 0/10, 2nd number: 15/72
30/10 - 15/72 is 67/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
30/10 = 30 × 36/10 × 36 = 1080/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Subtract the two like fractions:
1080/360 - 75/360 = 1080 - 75/360 = 1005/360 - After reducing the fraction, the answer is 67/24
- In mixed form: 219/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10-15/72 30/10-30/72 30/20-15/72 90/10-15/72 30/10-45/72 30/10-75/72 30/50-15/72 30/70-15/72