Subtract 30/10 from 70/9
1st number: 7 7/9, 2nd number: 3 0/10
70/9 - 30/10 is 43/9.
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,
70/9 = 70 × 10/9 × 10 = 700/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
30/10 = 30 × 9/10 × 9 = 270/90 - Subtract the two like fractions:
700/90 - 270/90 = 700 - 270/90 = 430/90 - After reducing the fraction, the answer is 43/9
- In mixed form: 47/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-60/10 70/18-30/10 70/9-30/20 70/9-90/10 70/27-30/10 70/45-30/10 70/9-30/50 70/63-30/10 70/9-30/70