Subtract 7/6 from 20/30
1st number: 20/30, 2nd number: 1 1/6
20/30 - 7/6 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
20/30 = 20 × 1/30 × 1 = 20/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
7/6 = 7 × 5/6 × 5 = 35/30 - Subtract the two like fractions:
20/30 - 35/30 = 20 - 35/30 = -15/30 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30-7/6 20/30-14/6 20/60-7/6 20/30-7/12 60/30-7/6 20/30-21/6 20/90-7/6 20/30-7/18 20/30-35/6 20/30-7/30 20/30-49/6 20/30-7/42