When dividing fractions, the multiplicative inverse of the second fraction is the same as dividing by two fractions. This is commonly known as Keep Change Flip (KCF).
Keep the first fraction or term the the same, then the operation of division is changed to multiplication. Lastly, the -2/5 is “flipped” to its reciprocal: 5/-2.
-3•5/-2
Now, multiply the fractions. Remember, to multiply two fraction, they both must be in fraction from: a/b. So, -3 can be rewritten as -3/1 because -3/1=-3, thus they ares till equal.
-3/1•5/-2
Now, multiply straight across:
(-3•5)/(1•-2)
Simplify:
-15/-2
-15/2=7.5
So, 7 and 1/2 is the right answer.