Term 1 - Ratios, Rates, and proportions - Quick Check 1 (Ratios) 7th Grade
1. Write the ratio 15:25 as a fraction in simplest form.
B. 3/5
-Explanation-
(Find the GCD for the numerator and denominator. Which is 5.
Divide both numbers by 5 to get the answer 3/5.)
2. The number of Flora's tulips to the number of Flora's roses.
A. 56 to 81
-Explanation-
(You go from tulips to roses not roses to tulips.
Then just put the numbers side by side in the correct order.
56:81 or 56 to 81.)
3. The number of Pat's roses to the total number of Pat's flowers.
B. 76:107
-Explanation-
(I can see where you would get confused and think roses
to tulips. But you add the number of roses and tulips and then
put roses to the Total number of flowers he has.)
4. Which ratio is equivalent to 3/7?
B. 9:21
-Explanation-
(The answer is B because, they took the 3 and multiplied it
by 3. And took the 7 and multiplied it by 3 also. It is not C
since the 3 was multiplied 4 times while the 7 was multiplied
5 times.)
I hope this gave you a better understanding as to why these are the answers.
I don't like seeing people hand out answers without a simple explanation in order
to help you improve the slightest. It is okay to use this website though, I do not mind.