Question

Which pair of ratios forms a proportion?

11/36,121/180

13/21,39/63

14/23,70/92

20/51,4/5

Thanks!

Answer 1

For 1, 36 x 5 =180 but 11x5 =55, so it's not #1. Number 2 says 21x3=63 and 13 x 3 =39, so you don't need to do the next two problems because 13/21 and 39/63 are proportional

Answer 2

they equal each other

Answer 3

Oh! Okay! Thanks! You explained that better than my lesson.

Answer 4

Thanks :)