Subtract 20/18 from 6/70
1st number: 6/70, 2nd number: 1 2/18
6/70 - 20/18 is -323/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
6/70 = 6 × 9/70 × 9 = 54/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
20/18 = 20 × 35/18 × 35 = 700/630 - Subtract the two like fractions:
54/630 - 700/630 = 54 - 700/630 = -646/630 - After reducing the fraction, the answer is -323/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70-20/18 6/70-40/18 6/70-20/36 18/70-20/18 6/70-60/18 6/70-20/54 30/70-20/18 6/70-20/90 42/70-20/18