Solve. 7 9/16 ÷ 2 3/4

Mathematics

2 answers:

Ahat [919]3 years ago

8 0

Answer:

$\frac{11}{4}$ or $2\frac{3}{4}$

Step-by-step explanation:

7 9/16 ÷ 2 3/4

$7 \frac{9}{16} =\frac{121}{16}$

$2 \frac{3}{4} =\frac{11}{4}$

Now divide both the fractions. when we divide the fraction , take reciprocal of second fraction and multiply it

$\frac{121}{16} \cdot \frac{4}{11}$

cancel out 121 and 11. Also cancel out 16 and 4

$\frac{11}{4} \cdot \frac{1}{1}$

$\frac{11}{4}$

kotykmax [81]3 years ago

7 0

Answer:

2 3/4

7 9/16 ÷ 2 3/4 = 2.75

so 2.75 as a fraction is 11/4

then we simplify 11/4= 2 3/4

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A flash disk has the capacity of storing 1 megabyte of data. How many kilobytes of data can be stored in the same flash disk

Luden [163]

For this sort of problem, you need to be familiar with prefixes.

So:

megabyte = $1 *10^6$ bytes

kilobyte = $1*10^3$ bytes

and a regular byte would just be $1$

Now, you will need to do a conversion:

$1megabyte*\frac{1*10^6bytes}{1megabyte}*\frac{1*10^{-3}kilobyte}{1byte}$

I'm going to explain this just in case, but we convert megabytes to regular bytes in the first half by using the information I gave you above. (In one megabyte, there are $1*10^6$ bytes!)

In the second fraction thought, remember one kilobyte is $1*10^3$ bytes. However, you usually only see one of each thing on the bottom of fractions, so you need to add a negative sign to the 3. (technically you could just do $\frac{1kilobyte}{1*10^3bytes}$ , but I think it is more correct to do write it out how I did).