Subtract 10/4 from 18/15
1st number: 1 3/15, 2nd number: 2 2/4
18/15 - 10/4 is -13/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
18/15 = 18 × 4/15 × 4 = 72/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
10/4 = 10 × 15/4 × 15 = 150/60 - Subtract the two like fractions:
72/60 - 150/60 = 72 - 150/60 = -78/60 - After reducing the fraction, the answer is -13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15-10/4 18/15-20/4 18/30-10/4 18/15-10/8 54/15-10/4 18/15-30/4 18/45-10/4 18/15-10/12 90/15-10/4 18/15-50/4 18/75-10/4 18/15-10/20 18/15-70/4 18/15-10/28