Subtract 90/10 from 30/49
1st number: 30/49, 2nd number: 9 0/10
30/49 - 90/10 is -411/49.
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,
30/49 = 30 × 10/49 × 10 = 300/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
90/10 = 90 × 49/10 × 49 = 4410/490 - Subtract the two like fractions:
300/490 - 4410/490 = 300 - 4410/490 = -4110/490 - After reducing the fraction, the answer is -411/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/49-90/10 30/98-90/10 30/49-90/20 90/49-90/10 30/49-90/30 30/49-90/50 30/49-90/70