Select the correct answer.
Which expression is equivalent to the given expression?

D

Step-by-step explanation:

try simplifying to get ur answer on a similar problem.

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !

m∠a is 90°

m∠b is 40°