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Diano4ka-milaya [45]
3 years ago
9

11/12 divided by 1/3

Mathematics
2 answers:
faust18 [17]3 years ago
8 0
The correct answer is \frac{11}{4}

You can find this by first starting with the original question. 

\frac{11}{12} ÷ \frac{1}{3}

Now to solve a division problem with fractions, you can always flip the second one and turn it into multiplying. 

\frac{11}{12} * \frac{3}{1}

Now we can multiply numerator by numerator and denominator by denominator. 

\frac{33}{12}

Then of course, we need to simplify. Since both are divisible by 3, we can divide both numbers by 3. 

\frac{11}{4}
Solnce55 [7]3 years ago
6 0
We use keep change flip when dividing fractions.
11/12; we'll keep this fraction.
×; we'll change it to multiplicion
3/1; we flip it.
11×3=33
12×1=12
33/12= 2 9/12= 2 3/4
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Solving for m:
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Finally:
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lidiya [134]
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After a 15% increase, a town has 115 people. What was the population before the increase?
Arte-miy333 [17]

Answer:

100 people

Step-by-step explanation:

<em>Population</em><em> </em><em>Of</em><em> </em><em>People</em><em>=</em><em>1</em><em>1</em><em>5</em><em>Percentage</em><em>ncrease</em><em>=</em><em>1</em><em>5</em><em>%</em>

<em>The</em><em> </em><em>New</em><em> </em><em>Population </em><em>corresponds </em><em>to</em><em> </em><em>1</em><em>1</em><em>5</em><em>%</em>

<em>(</em><em>That</em><em> </em><em>is</em><em> </em><em>1</em><em>0</em><em>0</em><em>+</em><em>1</em><em>5</em><em>)</em>

<em>We</em><em> </em><em>want</em><em> </em><em>to </em><em>find</em><em> </em><em>the</em><em> </em><em>popula</em><em>tion</em><em> </em><em>that</em><em> </em><em>corresponds</em><em> </em><em>to </em><em>100%</em><em> </em><em>that </em><em>is </em><em>the</em><em> </em><em>original</em><em> </em><em>population</em><em>.</em>

<em>Therefore</em><em> </em><em>Original </em><em>Population</em><em>;</em>

<em>\frac{100}{115}\times {115}{}</em>

<em>100 \: people</em>

7 0
3 years ago
How do you solve - 16/21 - (- 13/15)
Dennis_Churaev [7]
\bf -\cfrac{16}{21}-\left( -\cfrac{13}{15} \right)\implies -\cfrac{16}{21}+\cfrac{13}{15}\impliedby \textit{we'll use the LCD of 105}&#10;\\\\\\&#10;\cfrac{(-16\cdot 5)~+~(13\cdot 7)}{105}\implies \cfrac{-80~+~91}{105}\implies \cfrac{+11}{105}\implies \cfrac{11}{105}

in case you wonder why we used 105 as LCD,  

21 = 3 * 7

15 = 3 * 5

the "3" is common to both denominators, so we "use it once" and our LCD is then 3 * 7 * 5.
7 0
3 years ago
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