Subtract 54/12 from 30/50
1st number: 30/50, 2nd number: 4 6/12
30/50 - 54/12 is -39/10.
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,
30/50 = 30 × 6/50 × 6 = 180/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
54/12 = 54 × 25/12 × 25 = 1350/300 - Subtract the two like fractions:
180/300 - 1350/300 = 180 - 1350/300 = -1170/300 - After reducing the fraction, the answer is -39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/50-54/12 30/50-54/24 90/50-54/12 30/50-54/36 30/50-54/60 30/50-54/84