Subtract 12/70 from 9/18
9/18 - 12/70 is 23/70.
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,
9/18 = 9 × 35/18 × 35 = 315/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Subtract the two like fractions:
315/630 - 108/630 = 315 - 108/630 = 207/630 - After reducing the fraction, the answer is 23/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18-24/70 9/36-12/70 27/18-12/70 9/18-36/70 9/54-12/70 45/18-12/70 9/18-60/70 9/90-12/70 63/18-12/70 9/18-84/70