Subtract 3/7 from 9/3
1st number: 3 0/3, 2nd number: 3/7
9/3 - 3/7 is 18/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
9/3 = 9 × 7/3 × 7 = 63/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
3/7 = 3 × 3/7 × 3 = 9/21 - Subtract the two like fractions:
63/21 - 9/21 = 63 - 9/21 = 54/21 - After reducing the fraction, the answer is 18/7
- In mixed form: 24/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/3-3/7 9/3-6/7 9/6-3/7 9/3-3/14 27/3-3/7 9/3-9/7 9/3-3/21 45/3-3/7 9/3-15/7 9/15-3/7 9/3-3/35 63/3-3/7 9/3-21/7 9/21-3/7 9/3-3/49