Subtract 90/9 from 49/10
1st number: 4 9/10, 2nd number: 10 0/9
49/10 - 90/9 is -51/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
49/10 = 49 × 9/10 × 9 = 441/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
90/9 = 90 × 10/9 × 10 = 900/90 - Subtract the two like fractions:
441/90 - 900/90 = 441 - 900/90 = -459/90 - After reducing the fraction, the answer is -51/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/10-90/9 49/20-90/9 49/10-90/18 49/30-90/9 49/10-90/27 49/50-90/9 49/10-90/45 49/70-90/9 49/10-90/63