Subtract 8/49 from 15/70
15/70 - 8/49 is 5/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
15/70 = 15 × 7/70 × 7 = 105/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
8/49 = 8 × 10/49 × 10 = 80/490 - Subtract the two like fractions:
105/490 - 80/490 = 105 - 80/490 = 25/490 - After reducing the fraction, the answer is 5/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-8/49 15/70-16/49 15/70-8/98 45/70-8/49 15/70-24/49 75/70-8/49 15/70-40/49 15/70-56/49