Subtract 10/70 from 27/9
1st number: 3 0/9, 2nd number: 10/70
27/9 - 10/70 is 20/7.
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,
27/9 = 27 × 70/9 × 70 = 1890/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
10/70 = 10 × 9/70 × 9 = 90/630 - Subtract the two like fractions:
1890/630 - 90/630 = 1890 - 90/630 = 1800/630 - After reducing the fraction, the answer is 20/7
- In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9-10/70 27/9-20/70 27/18-10/70 81/9-10/70 27/9-30/70 27/9-50/70 27/45-10/70 27/63-10/70