Subtract 40/30 from 12/50
1st number: 12/50, 2nd number: 1 10/30
12/50 - 40/30 is -82/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 50 × 3 = 150,
12/50 = 12 × 3/50 × 3 = 36/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
40/30 = 40 × 5/30 × 5 = 200/150 - Subtract the two like fractions:
36/150 - 200/150 = 36 - 200/150 = -164/150 - After reducing the fraction, the answer is -82/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/50-40/30 12/50-80/30 12/50-40/60 36/50-40/30 12/50-40/90 60/50-40/30 84/50-40/30