Subtract 48/6 from 27/21
1st number: 1 6/21, 2nd number: 8 0/6
27/21 - 48/6 is -47/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
27/21 = 27 × 2/21 × 2 = 54/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
48/6 = 48 × 7/6 × 7 = 336/42 - Subtract the two like fractions:
54/42 - 336/42 = 54 - 336/42 = -282/42 - After reducing the fraction, the answer is -47/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21-48/6 27/21-96/6 27/42-48/6 27/21-48/12 81/21-48/6 27/63-48/6 27/21-48/18 27/21-48/30 27/21-48/42