Subtract 18/42 from 10/2
1st number: 5 0/2, 2nd number: 18/42
10/2 - 18/42 is 32/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
10/2 = 10 × 21/2 × 21 = 210/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
18/42 = 18 × 1/42 × 1 = 18/42 - Subtract the two like fractions:
210/42 - 18/42 = 210 - 18/42 = 192/42 - After reducing the fraction, the answer is 32/7
- In mixed form: 44/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/2-18/42 10/2-36/42 10/4-18/42 10/2-18/84 30/2-18/42 10/2-54/42 10/6-18/42 50/2-18/42 10/2-90/42 70/2-18/42 10/14-18/42