Subtract 84/27 from 63/90
1st number: 63/90, 2nd number: 3 3/27
63/90 - 84/27 is -217/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
63/90 = 63 × 3/90 × 3 = 189/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
84/27 = 84 × 10/27 × 10 = 840/270 - Subtract the two like fractions:
189/270 - 840/270 = 189 - 840/270 = -651/270 - After reducing the fraction, the answer is -217/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90-84/54 63/90-84/81