Subtract 56/50 from 20/70
1st number: 20/70, 2nd number: 1 6/50
20/70 - 56/50 is -146/175.
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,
20/70 = 20 × 5/70 × 5 = 100/350 - Likewise, for the 2nd fraction, since 50 × 7 = 350,
56/50 = 56 × 7/50 × 7 = 392/350 - Subtract the two like fractions:
100/350 - 392/350 = 100 - 392/350 = -292/350 - After reducing the fraction, the answer is -146/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/70-56/50 60/70-56/50