Subtract 15/10 from 18/49
1st number: 18/49, 2nd number: 1 5/10
18/49 - 15/10 is -111/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
18/49 = 18 × 10/49 × 10 = 180/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
15/10 = 15 × 49/10 × 49 = 735/490 - Subtract the two like fractions:
180/490 - 735/490 = 180 - 735/490 = -555/490 - After reducing the fraction, the answer is -111/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/49-15/10 18/49-30/10 18/98-15/10 18/49-15/20 54/49-15/10 18/49-45/10 18/49-15/30 90/49-15/10 18/49-75/10 18/49-15/50 18/49-15/70