Subtract 12/70 from 5/18
5/18 - 12/70 is 67/630.
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,
5/18 = 5 × 35/18 × 35 = 175/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Subtract the two like fractions:
175/630 - 108/630 = 175 - 108/630 = 67/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18-12/70 5/18-24/70 5/36-12/70 15/18-12/70 5/18-36/70 5/54-12/70 25/18-12/70 5/18-60/70 5/90-12/70 35/18-12/70 5/18-84/70