Subtract 2/7 from 20/50
20/50 - 2/7 is 4/35.
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,
20/50 = 20 × 7/50 × 7 = 140/350 - Likewise, for the 2nd fraction, since 7 × 50 = 350,
2/7 = 2 × 50/7 × 50 = 100/350 - Subtract the two like fractions:
140/350 - 100/350 = 140 - 100/350 = 40/350 - After reducing the fraction, the answer is 4/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/50-2/7 20/50-4/7 20/50-2/14 60/50-2/7 20/50-6/7 20/50-2/21 20/50-10/7 20/50-2/35 20/50-14/7 20/50-2/49