Subtract 75/10 from 30/9
1st number: 3 3/9, 2nd number: 7 5/10
30/9 - 75/10 is -25/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
30/9 = 30 × 10/9 × 10 = 300/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
75/10 = 75 × 9/10 × 9 = 675/90 - Subtract the two like fractions:
300/90 - 675/90 = 300 - 675/90 = -375/90 - After reducing the fraction, the answer is -25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9-75/10 30/18-75/10 30/9-75/20 90/9-75/10 30/27-75/10 30/9-75/30 30/45-75/10 30/9-75/50 30/63-75/10 30/9-75/70