Subtract 49/50 from 15/70
15/70 - 49/50 is -134/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 50 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
15/70 = 15 × 5/70 × 5 = 75/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
49/50 = 49 × 7/50 × 7 = 343/350 - Subtract the two like fractions:
75/350 - 343/350 = 75 - 343/350 = -268/350 - After reducing the fraction, the answer is -134/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-49/50 15/70-98/50 45/70-49/50 75/70-49/50