Answer:
C
Step-by-step explanation:
noting that
= i
Given

= 
=
×
× 
= 4i
→ C
Answer:
2/5
Step-by-step explanation:
First you want to find the least common denominator, which in this case would be 15. If you multiply 2/5 by 3, you get 6/15 which is less than 7/15