Subtract 70/14 from 15/18
1st number: 15/18, 2nd number: 5 0/14
15/18 - 70/14 is -25/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
15/18 = 15 × 7/18 × 7 = 105/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
70/14 = 70 × 9/14 × 9 = 630/126 - Subtract the two like fractions:
105/126 - 630/126 = 105 - 630/126 = -525/126 - After reducing the fraction, the answer is -25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18-70/14 15/36-70/14 15/18-70/28 45/18-70/14 15/54-70/14 15/18-70/42 75/18-70/14 15/90-70/14 15/18-70/98