Reduce the following rational numbers in standard form.
(i) 35/(-15)
(ii) (-36)/(-216)
(i) (35 / -15) = (-35 / 15) = (-35 ÷ 5) / (15 ÷ 5) = -7 / 3
[∴ HCF of 35 and 15 = 5]
(ii) (-36 / -216) = (36 / 216) = (36 ÷ 36) / (216 ÷ 36) = 1 / 6
[∴ HCF of 36 and 216 = 36]