Question

Answer 1

a: \(=\dfrac{-13\cdot2\cdot9\cdot10}{3\cdot4\cdot5\cdot26}=\dfrac{-1}{2}\cdot\dfrac{1}{2}\cdot3\cdot2=-\dfrac{3}{2}\)

b: \(=\dfrac{15\cdot12}{12\cdot3}=5\)

Answer 2

a)\(\dfrac{2.\left(-13\right).9.10}{\left(-3\right).4.\left(-5\right).26}\)

=\(\dfrac{-2340}{1560}\)

=\(-\dfrac{3}{2}\)

Answer 3

a) 1 x ( -1) x 3 x 2/ (-1) x 2 x (-1) x 2 = -3/2

b) 5