Subtract 3/10 from 12/54
12/54 - 3/10 is -7/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 10 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 10 × 27 = 270,
3/10 = 3 × 27/10 × 27 = 81/270 - Subtract the two like fractions:
60/270 - 81/270 = 60 - 81/270 = -21/270 - After reducing the fraction, the answer is -7/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/54-3/10 12/54-6/10 12/54-3/20 36/54-3/10 12/54-9/10 12/54-3/30 60/54-3/10 12/54-15/10 12/54-3/50 84/54-3/10 12/54-21/10 12/54-3/70