Subtract 48/42 from 18/2
1st number: 9 0/2, 2nd number: 1 6/42
18/2 - 48/42 is 55/7.
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,
18/2 = 18 × 21/2 × 21 = 378/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
48/42 = 48 × 1/42 × 1 = 48/42 - Subtract the two like fractions:
378/42 - 48/42 = 378 - 48/42 = 330/42 - After reducing the fraction, the answer is 55/7
- In mixed form: 76/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2-48/42 18/2-96/42 18/4-48/42 18/2-48/84 54/2-48/42 18/6-48/42 90/2-48/42 18/10-48/42 18/14-48/42