Subtract 8/70 from 30/9
1st number: 3 3/9, 2nd number: 8/70
30/9 - 8/70 is 338/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
30/9 = 30 × 70/9 × 70 = 2100/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
8/70 = 8 × 9/70 × 9 = 72/630 - Subtract the two like fractions:
2100/630 - 72/630 = 2100 - 72/630 = 2028/630 - After reducing the fraction, the answer is 338/105
- In mixed form: 323/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9-8/70 30/9-16/70 30/18-8/70 90/9-8/70 30/9-24/70 30/27-8/70 30/9-40/70 30/45-8/70 30/9-56/70 30/63-8/70