Subtract 90/63 from 27/48
1st number: 27/48, 2nd number: 1 27/63
27/48 - 90/63 is -97/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 63 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 48 × 21 = 1008,
27/48 = 27 × 21/48 × 21 = 567/1008 - Likewise, for the 2nd fraction, since 63 × 16 = 1008,
90/63 = 90 × 16/63 × 16 = 1440/1008 - Subtract the two like fractions:
567/1008 - 1440/1008 = 567 - 1440/1008 = -873/1008 - After reducing the fraction, the answer is -97/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/48-90/63 27/96-90/63 81/48-90/63