Subtract 27/7 from 45/2
1st number: 22 1/2, 2nd number: 3 6/7
45/2 - 27/7 is 261/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
45/2 = 45 × 7/2 × 7 = 315/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
27/7 = 27 × 2/7 × 2 = 54/14 - Subtract the two like fractions:
315/14 - 54/14 = 315 - 54/14 = 261/14 - In mixed form: 189/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-27/7 45/2-54/7 45/4-27/7 45/2-27/14 45/2-81/7 45/6-27/7 45/2-27/21 45/10-27/7 45/2-27/35 45/14-27/7 45/2-27/49