Answer:
-37/6
Step-by-step explanation:
First, you have to make sure both denominators are the same and to do this, you find the lowest common multiple. The lowest common multiple of 6 and 3 is 6.
Hence the first fraction stays the same because it is not going to be changed, unlike the second fraction.
7/3 = 7*2/3*2
= 14/6
Now both fractions have a common denominator, you can subtract.
-23/6 - 14/6
-23 - 14 = -37
Denominators stay the same, even if you add or subtract (different when you multiply and divide).
Hence, -37/6