Subtract 35/7 from 9/21
1st number: 9/21, 2nd number: 5 0/7
9/21 - 35/7 is -32/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
9/21 = 9 × 1/21 × 1 = 9/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
35/7 = 35 × 3/7 × 3 = 105/21 - Subtract the two like fractions:
9/21 - 105/21 = 9 - 105/21 = -96/21 - After reducing the fraction, the answer is -32/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21-35/7 9/21-70/7 9/42-35/7 9/21-35/14 27/21-35/7 9/63-35/7 9/21-35/21 45/21-35/7 63/21-35/7 9/21-35/49