Subtract 12/8 from 27/4
1st number: 6 3/4, 2nd number: 1 4/8
27/4 - 12/8 is 21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
27/4 = 27 × 2/4 × 2 = 54/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
12/8 = 12 × 1/8 × 1 = 12/8 - Subtract the two like fractions:
54/8 - 12/8 = 54 - 12/8 = 42/8 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4-12/8 27/4-24/8 27/8-12/8 27/4-12/16 81/4-12/8 27/4-36/8 27/12-12/8 27/4-12/24 27/4-60/8 27/20-12/8 27/4-12/40 27/4-84/8 27/28-12/8 27/4-12/56