Subtract 9/90 from 1/49
1/49 - 9/90 is -39/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
1/49 = 1 × 90/49 × 90 = 90/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
9/90 = 9 × 49/90 × 49 = 441/4410 - Subtract the two like fractions:
90/4410 - 441/4410 = 90 - 441/4410 = -351/4410 - After reducing the fraction, the answer is -39/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/49-9/90 1/49-18/90 1/98-9/90 3/49-9/90 1/49-27/90 5/49-9/90 1/49-45/90 7/49-9/90 1/49-63/90