Are the ratios 84/96 and 77/88 proportional?
No, because one has a quotient of 0.8¯and the other has a quotient of 0.875
Yes, because the cross products 84⋅96 and 77⋅88
are equal.
Yes, because they both reduce to the equivalent fraction 7 eighths.
No, because one ratio reduces to 56 and the other reduced to 78.