Subtract 36/50 from 12/45
12/45 - 36/50 is -34/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
12/45 = 12 × 10/45 × 10 = 120/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
36/50 = 36 × 9/50 × 9 = 324/450 - Subtract the two like fractions:
120/450 - 324/450 = 120 - 324/450 = -204/450 - After reducing the fraction, the answer is -34/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45-36/50 12/45-72/50 12/90-36/50 36/45-36/50 60/45-36/50 84/45-36/50