Subtract 50/20 from 40/75
1st number: 40/75, 2nd number: 2 10/20
40/75 - 50/20 is -59/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
40/75 = 40 × 4/75 × 4 = 160/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
50/20 = 50 × 15/20 × 15 = 750/300 - Subtract the two like fractions:
160/300 - 750/300 = 160 - 750/300 = -590/300 - After reducing the fraction, the answer is -59/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75-50/20 40/75-50/40 40/75-50/60