To divide fractions, you can use Keep, change, flip:
Keep the 3/4, change the division sign to multiplication, and flip the 1/4 to 4/1
3/4 x 4/1
=12/4
=3
Answer:
21
Step-by-step explanation:
In a supplementary angle the angle is 360°
in a complementary angle the angle is 180°
43