Subtract 12/24 from 27/84
27/84 - 12/24 is -5/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
27/84 = 27 × 2/84 × 2 = 54/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
12/24 = 12 × 7/24 × 7 = 84/168 - Subtract the two like fractions:
54/168 - 84/168 = 54 - 84/168 = -30/168 - After reducing the fraction, the answer is -5/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84-12/24 27/84-12/48 81/84-12/24 27/84-36/24 27/84-12/72 27/84-60/24 27/84-84/24