Subtract 49/90 from 3/10
3/10 - 49/90 is -11/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
3/10 = 3 × 9/10 × 9 = 27/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
49/90 = 49 × 1/90 × 1 = 49/90 - Subtract the two like fractions:
27/90 - 49/90 = 27 - 49/90 = -22/90 - After reducing the fraction, the answer is -11/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-49/90 3/10-98/90 3/20-49/90 9/10-49/90 3/30-49/90 15/10-49/90 3/50-49/90 21/10-49/90 3/70-49/90