Subtract 20/72 from 8/6
1st number: 1 2/6, 2nd number: 20/72
8/6 - 20/72 is 19/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
8/6 = 8 × 12/6 × 12 = 96/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Subtract the two like fractions:
96/72 - 20/72 = 96 - 20/72 = 76/72 - After reducing the fraction, the answer is 19/18
- In mixed form: 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/6-20/72 8/6-40/72 8/12-20/72 24/6-20/72 8/6-60/72 8/18-20/72 40/6-20/72 8/30-20/72 56/6-20/72 8/42-20/72