Subtract 18/10 from 18/4
1st number: 4 2/4, 2nd number: 1 8/10
18/4 - 18/10 is 27/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
18/4 = 18 × 5/4 × 5 = 90/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
18/10 = 18 × 2/10 × 2 = 36/20 - Subtract the two like fractions:
90/20 - 36/20 = 90 - 36/20 = 54/20 - After reducing the fraction, the answer is 27/10
- In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-18/10 18/4-36/10 18/8-18/10 18/4-18/20 54/4-18/10 18/4-54/10 18/12-18/10 18/4-18/30 90/4-18/10 18/4-90/10 18/20-18/10 18/4-18/50 18/28-18/10 18/4-18/70