A 1-lb mixture of nuts contains 11 oz of cashews and 5 oz of peanuts. What is the ratio of cashews to peanuts?This is a math question. May I ask, when writing a ratio, do we need to write...
A 1-lb mixture of nuts contains 11 oz of cashews and 5 oz of peanuts. What is the ratio of cashews to peanuts?
This is a math question. May I ask, when writing a ratio, do we need to write only the number? Or also the unit? Ex: (oz)together with the number?
A ratio is just a comparison. You are comparing the amount of one thing TO the amount of the other. Because the numbers you are comparing are in the same unit - ounces - this is very straight-forward.
First, you need to examine the question. It is asking the ratio of cashews to peanuts. Based on your information, there are
11 oz of cashews TO 5 oz of peanuts.
11 : 5 (no need to express the unit)
This could also be expressed as a fraction: 11/5. Always look at your ratio as a fraction, and see if you can reduce it. 11/5 can not be reduced, so the ration remains 11:5.
However, if the ratio had been 12:6, then the fraction 12/6 could be reduced to 2/1 - the reduced ratio would then be 2:1.
Remember, though, that your example can not be reduced.
You do not need to write the unit, if you are asked for a ratio. It is 11:5, cashews to peanuts (by weight). If you had 16 pounds of nuts with 11 lbs. cashews and 5 lbs peanuts, the ratio would still be 11:5.