Subtract 15/45 from 12/50
12/50 - 15/45 is -7/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 45 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
12/50 = 12 × 9/50 × 9 = 108/450 - Likewise, for the 2nd fraction, since 45 × 10 = 450,
15/45 = 15 × 10/45 × 10 = 150/450 - Subtract the two like fractions:
108/450 - 150/450 = 108 - 150/450 = -42/450 - After reducing the fraction, the answer is -7/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/50-15/45 12/50-30/45 12/50-15/90 36/50-15/45 60/50-15/45 12/50-75/45 84/50-15/45