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Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion


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November 14th, 2014, 03:48 AM   #1
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A calculation

Hello!
To calculate $\displaystyle 35:5:7$.
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November 14th, 2014, 03:59 AM   #2
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If : denotes division then 1.
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November 14th, 2014, 08:08 AM   #3
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(35 : 5) : 7
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November 14th, 2014, 09:11 AM   #4
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Continuing one more step beyond Monox's suggestion:

(35:5):7 =

(7:1):7 =

Now what are the final two steps?
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November 14th, 2014, 02:16 PM   #5
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What is 7 : 1? You know the result, then divide it by 7. Done. You would have found the answer.
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November 15th, 2014, 11:21 AM   #6
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7:1 is the reduction of the ratio 35:5

Monox, what is the "answer" in your opinion?
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November 15th, 2014, 10:17 PM   #7
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Quote:
Originally Posted by Hoempa View Post
If : denotes division then 1.
Correctly!
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November 18th, 2014, 12:52 AM   #8
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As usual, you go from left to right. It likes (35:5):7.
The final answer is 1.
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November 20th, 2014, 08:11 AM   #9
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If 35 : 5 : 7 denotes a ratio then the reduction to 7 : 1 : 7 isn't allowed. However, it seems to be a division.
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November 21st, 2014, 04:34 PM   #10
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Hoempa, I see what you mean. At first I thought 7:1:7 was the "answer".
But clearly 35:5:7 is a three-term ratio which cannot be reduced.

So, Dacu, what do mean by "solving" the ratio?

Last edited by skipjack; November 21st, 2014 at 06:15 PM.
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