Subtract 18/90 from 35/49
35/49 - 18/90 is 18/35.
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,
35/49 = 35 × 90/49 × 90 = 3150/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
18/90 = 18 × 49/90 × 49 = 882/4410 - Subtract the two like fractions:
3150/4410 - 882/4410 = 3150 - 882/4410 = 2268/4410 - After reducing the fraction, the answer is 18/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/49-18/90 35/49-36/90 35/98-18/90 35/49-54/90