Subtract 45/15 from 12/10
1st number: 1 2/10, 2nd number: 3 0/15
12/10 - 45/15 is -9/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
12/10 = 12 × 3/10 × 3 = 36/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
45/15 = 45 × 2/15 × 2 = 90/30 - Subtract the two like fractions:
36/30 - 90/30 = 36 - 90/30 = -54/30 - After reducing the fraction, the answer is -9/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/10-45/15 12/10-90/15 12/20-45/15 12/10-45/30 36/10-45/15 12/30-45/15 60/10-45/15 12/50-45/15 12/10-45/75 84/10-45/15 12/70-45/15