Question

use cross products to see if each pair of ratios forms a proportion. replace each box with = or = with a line down the middle of it. 6/8 15/20

Answer 1

i really need help

Answer 2

if the two ratios form a proportion, they should be equal. to see if they're equal, try simplifying each ratio by factoring out common factors between the numerator and the denominator. for example, on the left side, both 6 and 8 are divisible by 2 so you can factor out 2 from each to reduce the fraction.