Question

（-1又4分之三）*2乘以（7分之2）*3乘以（-2分之7）乘以（-2）,

Answer 1

（-1又3/4）*2*2/7*3*(-7/2)*(-2)

=[-7/4*2/7*2]*[(-7/2)*(-2)]

=(-1)*7

=-7