Subtract 40/7 from 63/3
1st number: 21 0/3, 2nd number: 5 5/7
63/3 - 40/7 is 107/7.
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,
63/3 = 63 × 7/3 × 7 = 441/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
40/7 = 40 × 3/7 × 3 = 120/21 - Subtract the two like fractions:
441/21 - 120/21 = 441 - 120/21 = 321/21 - After reducing the fraction, the answer is 107/7
- In mixed form: 152/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/3-80/7 63/6-40/7 63/3-40/14 63/9-40/7 63/3-40/21 63/15-40/7 63/3-40/35 63/21-40/7 63/3-40/49