Subtract 30/6 from 8/42
1st number: 8/42, 2nd number: 5 0/6
8/42 - 30/6 is -101/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
8/42 = 8 × 1/42 × 1 = 8/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
30/6 = 30 × 7/6 × 7 = 210/42 - Subtract the two like fractions:
8/42 - 210/42 = 8 - 210/42 = -202/42 - After reducing the fraction, the answer is -101/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42-30/6 8/42-60/6 8/84-30/6 8/42-30/12 24/42-30/6 8/42-90/6 8/42-30/18 40/42-30/6 56/42-30/6 8/42-30/42