Subtract 49/5 from 63/90
1st number: 63/90, 2nd number: 9 4/5
63/90 - 49/5 is -91/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
49/5 = 49 × 18/5 × 18 = 882/90 - Subtract the two like fractions:
63/90 - 882/90 = 63 - 882/90 = -819/90 - After reducing the fraction, the answer is -91/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90-98/5 63/90-49/10 63/90-49/15 63/90-49/25 63/90-49/35