Subtract 12/45 from 27/56
27/56 - 12/45 is 181/840.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
27/56 = 27 × 45/56 × 45 = 1215/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
12/45 = 12 × 56/45 × 56 = 672/2520 - Subtract the two like fractions:
1215/2520 - 672/2520 = 1215 - 672/2520 = 543/2520 - After reducing the fraction, the answer is 181/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56-12/45 27/56-24/45 27/56-12/90 81/56-12/45 27/56-36/45 27/56-60/45 27/56-84/45