Subtract 4/30 from 12/54
12/54 - 4/30 is 4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
12/54 = 12 × 5/54 × 5 = 60/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
4/30 = 4 × 9/30 × 9 = 36/270 - Subtract the two like fractions:
60/270 - 36/270 = 60 - 36/270 = 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: 24/54-4/30 12/54-8/30 12/54-4/60 36/54-4/30 12/54-12/30 12/54-4/90 60/54-4/30 12/54-20/30 84/54-4/30 12/54-28/30