Subtract 5/42 from 10/12
10/12 - 5/42 is 5/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
10/12 = 10 × 7/12 × 7 = 70/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
5/42 = 5 × 2/42 × 2 = 10/84 - Subtract the two like fractions:
70/84 - 10/84 = 70 - 10/84 = 60/84 - After reducing the fraction, the answer is 5/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12-5/42 10/12-10/42 10/24-5/42 10/12-5/84 30/12-5/42 10/12-15/42 10/36-5/42 50/12-5/42 10/12-25/42 10/60-5/42 70/12-5/42 10/12-35/42 10/84-5/42