Subtract 35/70 from 15/49
15/49 - 35/70 is -19/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
15/49 = 15 × 10/49 × 10 = 150/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
35/70 = 35 × 7/70 × 7 = 245/490 - Subtract the two like fractions:
150/490 - 245/490 = 150 - 245/490 = -95/490 - After reducing the fraction, the answer is -19/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/49-35/70 15/98-35/70 45/49-35/70 75/49-35/70