Divide :
$(i) 12 x^{3} y^{2} b y 3 x^{2} y$ $(i i) - 15 a^{2} b c^{3} b y 3 a b$

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Solution

(i) We have,
$\frac{12 x^{3} y^{2}}{3 x^{2} y} = \frac{12 \times x \times x \times x \times y \times y}{3 \times x \times x \times y} = 4 \times x \times y = 4 x y$

(ii) We have,
$\frac{- 15 a^{2} b c^{3}}{3 a b} = \frac{- 15 \times a \times a \times b \times c \times c \times c}{3 \times a \times b} = - 5 a c^{3}$

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