The commutative property can be expressed as
A
A ÷ B = B ÷ A

B
A + B = B + A

C
A + B + C = (A + B) + C

D
A(B + C) = (A × B) + (A × C)

Classify the following triangle check all that apply

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

I’m still confused on how to work the percentages