Subtract 9/10 from 3/49
3/49 - 9/10 is -411/490.
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,
3/49 = 3 × 10/49 × 10 = 30/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
9/10 = 9 × 49/10 × 49 = 441/490 - Subtract the two like fractions:
30/490 - 441/490 = 30 - 441/490 = -411/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/49-9/10 3/49-18/10 3/98-9/10 3/49-9/20 9/49-9/10 3/49-27/10 3/49-9/30 15/49-9/10 3/49-45/10 3/49-9/50 21/49-9/10 3/49-63/10 3/49-9/70