Subtract 81/30 from 60/50
1st number: 1 10/50, 2nd number: 2 21/30
60/50 - 81/30 is -3/2.
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,
60/50 = 60 × 3/50 × 3 = 180/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
81/30 = 81 × 5/30 × 5 = 405/150 - Subtract the two like fractions:
180/150 - 405/150 = 180 - 405/150 = -225/150 - After reducing the fraction, the answer is -3/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/50-81/60 60/50-81/90