Subtract 96/9 from 20/42
1st number: 20/42, 2nd number: 10 6/9
20/42 - 96/9 is -214/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
20/42 = 20 × 3/42 × 3 = 60/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
96/9 = 96 × 14/9 × 14 = 1344/126 - Subtract the two like fractions:
60/126 - 1344/126 = 60 - 1344/126 = -1284/126 - After reducing the fraction, the answer is -214/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42-96/9 20/84-96/9 20/42-96/18 60/42-96/9 20/42-96/27 20/42-96/45 20/42-96/63