we can use formula

we can compare
we get
a=x
b=2
now, we can plug that in formula
and we get

now, we can simplify it
...........Answer
Answer:
Step-by-step explanation:
the top left corner
1/2+1/3=5/6
1/2+3/4=1 1/4
3/5+5/7=1 11/35
1/5+2/3=13/15
Answer:
B
Step-by-step explanation
U need to keep up with your training and work hard