Subtract 45/12 from 72/50
1st number: 1 22/50, 2nd number: 3 9/12
72/50 - 45/12 is -231/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 50 × 6 = 300,
72/50 = 72 × 6/50 × 6 = 432/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
45/12 = 45 × 25/12 × 25 = 1125/300 - Subtract the two like fractions:
432/300 - 1125/300 = 432 - 1125/300 = -693/300 - After reducing the fraction, the answer is -231/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/50-90/12 72/50-45/24 72/50-45/36 72/50-45/60 72/50-45/84