okay there is total (250*4 ml) fluor in the bag
You don't need to express it in metric; the mere fact that a unit is consistent is enough to treat it as a unit on its own. All that matters is that it is a volume. I could measure a volume in handfuls, as long as I always use the same hand(s); or a distance in paces, as long as I step the same distance in every pace, without having to even think about how many milliliters or meters each is. In fact, that's the purpose of the word "parts" in talking about ratios.
Also, you should be aware, in case you ever do any baking in America, that our cup is not equal to 250 mL. The latter is sometimes called a metric cup, and the same measuring cup often shows both units. (The lines for 1 cup and 250 mL don't line up.) See here:
http://www.ibiblio.org/units/dictC.html
cup (c) [1] a traditional unit of volume used in recipes in the United States. One cup equals 1/2 (liquid)
pint, or 8
fluid ounces. Technically, one cup equals exactly 14.4375 cubic inches or approximately 236.6 milliliters, not that anyone measures quite so precisely in the kitchen. American cooks use the same size cup for measuring both liquid and dry substances. In Canada, a cup is equal to 8 Imperial fluid ounces (13.8710 cubic inches or 227.3 milliliters). In Britain, cooks sometimes used a similar but larger unit called the
breakfast cup, equal to 10 Imperial fluid ounces. The British cup equals 1/2 Imperial pint, but the Canadian cup is only 0.4 Imperial pint.
cup (c) [2] an informal metric unit of volume equal to 250 milliliters, commonly used in recipes in Australia.
cup (c) [3] an informal unit of volume for coffee. The size of a cup of coffee varies according to local custom, but a typical size is about 5 fluid ounces or 150 milliliters.
By the way, the word in English is "flour", not "fluor". Fluor, according to my dictionary, is a mineral also called fluorite, which I would not use for baking unless I wanted to make glass.
Clearly I should have used something other than cups of flour in my example, to save both of us hours of wasted time.
So, what was the main point you are trying to convey when you actually said 3 months ago . You are trying to make me explain the difference between absolute Vs relative quantity right and with the former only I can add two fractions consistently.
Right??
Yes, that's what I said I was saying ... or more specifically, that 1/16 is meaningless without knowing what it is 1/16 OF. And I want you to understand it, more than to explain it.
1/16 of 4 cups is a part to whole ratio .
[Part is 1 and whole is 16 parts or 4 cups]
So , can I say in 1/4 of a cup this is also a part to whole ratio .
[Part is 1 and whole is 4 parts or one cup]
If not, why?
Yes, you can say that. In the latter case, the whole is one cup, and that corresponds to 4 parts in this ratio.
I took out fluor from the bag with the help of measuring cup 4 times
These are the 4 quantities I took out suppose : 1/4, 2/4, 1/4, and 1/4 cup respectively, then, yes, the total fluor I took out is 5/4 of a cup .(5/4 * 250 ml= 312.5 ml of flour). I can also say in terms of how much of the bag I used : 5/16 of 4 cups or 5/16 of the whole bag ..
Okay no worries.
What confuses me here is, what made you decide to take out four amounts that are not the same? Why did you introduce that idea?
But given that you arbitrarily decided to do that, your conclusions are correct. And please don't bother to answer my question; I am not curious enough to waste still more time on nothing.
But you kind of confused me with this line
" Of course that's not 5/4 of a cup."
What are you saying here.
Really I spent some 4 hours in this part trying to interpret.
I probably meant to say 5/16! I think you really need to learn not to obsess over details. Haven't we told you before,
sometimes what you read is just a mistake, and you need to skip over it?
