Subtract 3/70 from 7/50
7/50 - 3/70 is 17/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
7/50 = 7 × 7/50 × 7 = 49/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
3/70 = 3 × 5/70 × 5 = 15/350 - Subtract the two like fractions:
49/350 - 15/350 = 49 - 15/350 = 34/350 - After reducing the fraction, the answer is 17/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/50-3/70 7/50-6/70 21/50-3/70 7/50-9/70 35/50-3/70 7/50-15/70 49/50-3/70 7/50-21/70