Subtract 10/40 from 12/50
12/50 - 10/40 is -1/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
12/50 = 12 × 4/50 × 4 = 48/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
10/40 = 10 × 5/40 × 5 = 50/200 - Subtract the two like fractions:
48/200 - 50/200 = 48 - 50/200 = -2/200 - After reducing the fraction, the answer is -1/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/50-10/40 12/50-20/40 12/50-10/80 36/50-10/40 12/50-30/40 60/50-10/40 12/50-50/40 84/50-10/40 12/50-70/40