The complement of 20°17' is

Answer:69°43'

Step-by-step explanation:

Complementary angles add up to 90

Let them complement be y

y+20°17'=90°

Collect like terms

y=90-20°17' 20°17'=1217/60

y=90-1217/60

y = (60x90 - 1 x 1217) / 60

y = (5400-1217) / 60

y=4183/60

y=69°43'