Subtract 75/10 from 90/49
1st number: 1 41/49, 2nd number: 7 5/10
90/49 - 75/10 is -555/98.
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,
90/49 = 90 × 10/49 × 10 = 900/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
75/10 = 75 × 49/10 × 49 = 3675/490 - Subtract the two like fractions:
900/490 - 3675/490 = 900 - 3675/490 = -2775/490 - After reducing the fraction, the answer is -555/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98-75/10 90/49-75/20 90/49-75/30 90/49-75/50 90/49-75/70