Zoe is making a quilt using 15 red squares and 30 green squares. Which combination shows the same ratio of red squares to green
squares?
a. 3 red squares to 6 green squares
b. 6 red squares to 3 green squares
c. 5 red squares to 12 green squares
d. 12 red squares to 5 green squares
Please include the work!
2 answers:
The answer is a 3 red square to 6 green square
Answer: A. 3 red squares to 6 green squares
Step-by-step explanation:
Method 1) Find a common factor between 15 and 30. For this problem, I'll pick 5. Divide both numbers by this common factor.
15/5=3 red squares
30/5=6 green squares
<em>3 red squares to 6 green squares</em>
Method 2) Find the greatest common factor between 15 and 30. The GCF is 15. Divide both numbers by the GCF.
15/15=1
30/15=2
This leaves you with a ratio of 1 red square to 2 green squares. 1:2 is equivalent to 3:6
<em>3 red squares to 6 green squares</em>
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