Subtract 4/30 from 45/50
45/50 - 4/30 is 23/30.
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,
45/50 = 45 × 3/50 × 3 = 135/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
4/30 = 4 × 5/30 × 5 = 20/150 - Subtract the two like fractions:
135/150 - 20/150 = 135 - 20/150 = 115/150 - After reducing the fraction, the answer is 23/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/50-4/30 45/50-8/30 45/50-4/60 45/50-12/30 45/50-4/90 45/50-20/30 45/50-28/30