Subtract 75/10 from 30/15
1st number: 2 0/15, 2nd number: 7 5/10
30/15 - 75/10 is -11/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
30/15 = 30 × 2/15 × 2 = 60/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
75/10 = 75 × 3/10 × 3 = 225/30 - Subtract the two like fractions:
60/30 - 225/30 = 60 - 225/30 = -165/30 - After reducing the fraction, the answer is -11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15-75/10 30/15-75/20 90/15-75/10 30/45-75/10 30/15-75/30 30/75-75/10 30/15-75/50 30/15-75/70