Subtract 20/35 from 1/2
1/2 - 20/35 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
1/2 = 1 × 35/2 × 35 = 35/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
20/35 = 20 × 2/35 × 2 = 40/70 - Subtract the two like fractions:
35/70 - 40/70 = 35 - 40/70 = -5/70 - After reducing the fraction, the answer is -1/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 1/2-40/35 1/4-20/35 1/2-20/70 3/2-20/35 1/2-60/35 1/6-20/35 5/2-20/35 1/10-20/35 7/2-20/35 1/14-20/35