Subtract 75/9 from 30/49
1st number: 30/49, 2nd number: 8 3/9
30/49 - 75/9 is -1135/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
30/49 = 30 × 9/49 × 9 = 270/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
75/9 = 75 × 49/9 × 49 = 3675/441 - Subtract the two like fractions:
270/441 - 3675/441 = 270 - 3675/441 = -3405/441 - After reducing the fraction, the answer is -1135/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/49-75/9 30/98-75/9 30/49-75/18 90/49-75/9 30/49-75/27 30/49-75/45 30/49-75/63