Subtract 45/30 from 4/5
1st number: 4/5, 2nd number: 1 15/30
4/5 - 45/30 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
4/5 = 4 × 6/5 × 6 = 24/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
45/30 = 45 × 1/30 × 1 = 45/30 - Subtract the two like fractions:
24/30 - 45/30 = 24 - 45/30 = -21/30 - After reducing the fraction, the answer is -7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-45/30 4/5-90/30 4/10-45/30 4/5-45/60 12/5-45/30 4/15-45/30 4/5-45/90 20/5-45/30 4/25-45/30 28/5-45/30 4/35-45/30