Subtract 8/70 from 3/18
3/18 - 8/70 is 11/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
3/18 = 3 × 35/18 × 35 = 105/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
8/70 = 8 × 9/70 × 9 = 72/630 - Subtract the two like fractions:
105/630 - 72/630 = 105 - 72/630 = 33/630 - After reducing the fraction, the answer is 11/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18-8/70 3/18-16/70 3/36-8/70 9/18-8/70 3/18-24/70 3/54-8/70 15/18-8/70 3/18-40/70 3/90-8/70 21/18-8/70 3/18-56/70