Subtract 20/7 from 70/50
1st number: 1 20/50, 2nd number: 2 6/7
70/50 - 20/7 is -51/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 7 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
70/50 = 70 × 7/50 × 7 = 490/350 - Likewise, for the 2nd fraction, since 7 × 50 = 350,
20/7 = 20 × 50/7 × 50 = 1000/350 - Subtract the two like fractions:
490/350 - 1000/350 = 490 - 1000/350 = -510/350 - After reducing the fraction, the answer is -51/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/50-40/7 70/50-20/14 70/50-60/7 70/50-20/21 70/50-20/35 70/50-20/49