Subtract 12/10 from 28/27
1st number: 1 1/27, 2nd number: 1 2/10
28/27 - 12/10 is -22/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
28/27 = 28 × 10/27 × 10 = 280/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
12/10 = 12 × 27/10 × 27 = 324/270 - Subtract the two like fractions:
280/270 - 324/270 = 280 - 324/270 = -44/270 - After reducing the fraction, the answer is -22/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/27-12/10 28/27-24/10 28/54-12/10 28/27-12/20 84/27-12/10 28/27-36/10 28/81-12/10 28/27-12/30 28/27-60/10 28/27-12/50 28/27-84/10 28/27-12/70