Subtract 2/8 from 70/18
1st number: 3 16/18, 2nd number: 2/8
70/18 - 2/8 is 131/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
70/18 = 70 × 4/18 × 4 = 280/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
2/8 = 2 × 9/8 × 9 = 18/72 - Subtract the two like fractions:
280/72 - 18/72 = 280 - 18/72 = 262/72 - After reducing the fraction, the answer is 131/36
- In mixed form: 323/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-4/8 70/36-2/8 70/18-2/16 70/18-6/8 70/54-2/8 70/18-2/24 70/18-10/8 70/90-2/8 70/18-2/40 70/18-14/8 70/18-2/56