Question

-2/5, ?/10, 6/?, -8/?​

Answer 1

-2/5 = (-2×2)/ (5×2) = -4/10

-2/5 = (-2×3)/ (5×3) = -6/15

-2/5 = (-2×4)/ (5×4) = -8/20

The series is as follows:

-2/5, -4/10, -6/15, -8/20