Subtract 2/18 from 25/70
25/70 - 2/18 is 31/126.
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,
25/70 = 25 × 9/70 × 9 = 225/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
2/18 = 2 × 35/18 × 35 = 70/630 - Subtract the two like fractions:
225/630 - 70/630 = 225 - 70/630 = 155/630 - After reducing the fraction, the answer is 31/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70-2/18 25/70-4/18 25/70-2/36 75/70-2/18 25/70-6/18 25/70-2/54 25/70-10/18 25/70-2/90 25/70-14/18