SOLUTION: Let a,b,c,and d be positive. Prove the follwing properties of the proportion a/b=c/d.
17. a+b/b=c+d/d
how do i prove this? please help.
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Question 190880This question is from textbook algebra and trigonometry structure and method book 2
: Let a,b,c,and d be positive. Prove the follwing properties of the proportion a/b=c/d.
17. a+b/b=c+d/d
how do i prove this? please help.
This question is from textbook algebra and trigonometry structure and method book 2
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If we look at , we can see that it breaks down to and simplifies to . So to reverse this, we must add 1 to both sides of and combine the terms. Note: we must start with what we are given to find the unknown (so we must start with the equation ).
Start with the given equation
Add 1 to both sides.
Multiply the first "1" by (to make the denominators on the left side equal).
Multiply the second "1" by (to make the denominators on the right side equal).
Combine the fractions
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