Subtract 27/84 from 9/8
1st number: 1 1/8, 2nd number: 27/84
9/8 - 27/84 is 45/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
9/8 = 9 × 21/8 × 21 = 189/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
27/84 = 27 × 2/84 × 2 = 54/168 - Subtract the two like fractions:
189/168 - 54/168 = 189 - 54/168 = 135/168 - After reducing the fraction, the answer is 45/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8-27/84 9/8-54/84 9/16-27/84 27/8-27/84 9/8-81/84 9/24-27/84 45/8-27/84 9/40-27/84 63/8-27/84 9/56-27/84