Subtract 12/54 from 4/30
4/30 - 12/54 is -4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
4/30 = 4 × 9/30 × 9 = 36/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
12/54 = 12 × 5/54 × 5 = 60/270 - Subtract the two like fractions:
36/270 - 60/270 = 36 - 60/270 = -24/270 - After reducing the fraction, the answer is -4/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30-12/54 4/30-24/54 4/60-12/54 12/30-12/54 4/30-36/54 4/90-12/54 20/30-12/54 4/30-60/54 28/30-12/54 4/30-84/54