Subtract 54/45 from 24/30
1st number: 24/30, 2nd number: 1 9/45
24/30 - 54/45 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
24/30 = 24 × 3/30 × 3 = 72/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
54/45 = 54 × 2/45 × 2 = 108/90 - Subtract the two like fractions:
72/90 - 108/90 = 72 - 108/90 = -36/90 - After reducing the fraction, the answer is -2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/30-54/45 24/60-54/45 24/30-54/90 72/30-54/45 24/90-54/45