Get common denominators, and solve for each expression
7/5 - 3/4 = 28/20 - 15/20 = 13/20
1/4 + 2/5 = 5/20 + 8/20 = 13/20
These two fractions are equivalent
Answer:

Step-by-step explanation:
Given


Required

Since the events are mutually exclusive, then:

So, we have:

Take LCM



You can use this one app it’s called Cymath it’s really helpful with these types of problems,
Answer:
bbc
bbc
ssc
Step-by-step explanation:
hahah