What dose this equal

Answer:
1/10
Step-by-step explanation:
First, find common denominators. Remember that what you multiply to the denominator, you must multiply to the numerator.
(1/2)(5/5) = 5/10
(2/5)(2/2) = 4/10
Subtract.
5/10 - 4/10 = 1/10
1/10 is your answer
~