Find the quotient :
(i) (+15) / (+5)
= + (15 / 5)
= + 3
(ii) (-20) / (-4)
= + 20 / 4
= + 5
(iii) (+32) / (-8)
= - 32 / 8
= - 4
(iv) (-36) / (+12)
= - 36 / 12
= - 3