Answers:
In these exercices are ilustrated the representations of the fractions
2) Firstly, we have 3 equal segments, each one representing
, hence:
is <u>3</u> copies of
Let's prove it, taking into account we are adding fractions with the same denominator:

There are <u>4</u> equal parts that make a whole
Four copies of <u>
</u> make
or <u>1</u> whole

3) Here we have a line divided into four segments, each one of
. Hence:
This is
of a line.
is <u>4</u> lengths of

If we draw one more
we will have
or 1 whole.
Then:
<u>5</u> lengths of
make
or <u>1</u> whole.
4) In this part the answer is in the attached image. If we have two equal segments, each one of
we will have as a result
.
If we add another
segment, we will have three segments of
, having as a result 
Divide the irregular figure into rectangles
Area of rectangle = l * w
4 * 5 = 20 in^2
5 * 12 = 60 in^2
7 * 11 = 77 in^2
Add them together
20 + 60 + 77 = 157 in^2
(Sorry if the picture isn’t neat)
Answer:
1. 7^(x-y)
2. z^5x^y
Step-by-step explanation:
The applicable rule of exponents is ...
(a^b)/(a^c) = a^(b-c)
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1.

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2.
