Subtract 45/10 from 12/9
1st number: 1 3/9, 2nd number: 4 5/10
12/9 - 45/10 is -19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
12/9 = 12 × 10/9 × 10 = 120/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
45/10 = 45 × 9/10 × 9 = 405/90 - Subtract the two like fractions:
120/90 - 405/90 = 120 - 405/90 = -285/90 - After reducing the fraction, the answer is -19/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9-45/10 12/9-90/10 12/18-45/10 12/9-45/20 36/9-45/10 12/27-45/10 12/9-45/30 60/9-45/10 12/45-45/10 12/9-45/50 84/9-45/10 12/63-45/10 12/9-45/70