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Sauron [17]
3 years ago
8

3/5 + 1/2 and can you please explain how to do it.

Mathematics
2 answers:
Anna11 [10]3 years ago
5 0
The simple way is cross multiplication
I will attach a paper you check it
brainliest pls

raketka [301]3 years ago
3 0
When adding fractions, you have to make sure the bottom numbers are the same. Otherwise, you can't add them.

So currently, the bottom number for the first fraction is 5. The bottom number for the second fraction is 2.

As you can see, 5 is not the same as 2, so we need to find one number to make sure the bottom number is the same for both the fractions.

You can multiply the the first fraction by 2, and the second fraction by 5 to give you two fractions that have the same denominator (bottom number.)

So, 3/5 multiplied by 2 is the same as multiplying 3 by 2, and 5 by 2. That gives you 6/10.

1/2 multiplied by 5 is 1 multiplied by 5, and 2 multiplied by 5, which is 5/10.

Now that you have your converted fractions, you can add them and forget about the bottom number, as it's the same. When adding fractions, if the bottom numbers are equal, you leave it as it is, so the 10 stays as 10:

6/10 + 5/10 = 11/10 

Notice how I added 6 and 5 to give me 11, but I don't add 10 + 10, because I don't need to.

So the answer is 11/10.
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Which of the following is a proportion?
poizon [28]

Answer:

Option C, 14/21=9/21 is the proportion.

Step-by-step explanation:

Given:

a.5/7 = 10/12

b.9/15 = 12/18

c.4/6 = 8/12

d.14/21 = 9/12

We have to find the proportions.

In proportion two ratios are equal, as it has an equality sign in between so both side must be of same ratio in its simplest form.

Let's work with option C

⇒ \frac{4}{6}=\frac{8}{12}

To find the simplest form we have to divide the numerator and denominator with same digit (or its factor).

Simplest form of  \frac{8/2}{12/2} = \frac{4}{6} , \frac{4/2}{6/2}= \frac{2}{3}

Simplest form of \frac{4}{6} = \frac{2}{3}

Both sides in option C have equal ratios of 2/3.

So 4/6=8/12 is in proportion.

6 0
3 years ago
1. You are designing a rectangular playground. On your scale drawing, the vertices of the rectangle are (6, 3), (6, 5), and (8,
kramer
(8,5) because (6,5) is distance 2 from (6,3). So (8,5) will distance 2 from (8,3)
5 0
3 years ago
Read 2 more answers
What is the slope of a line that is parallel to the line y =3/4 x + 2
lbvjy [14]
Y=mx+b
m=slope

slopes of parallel lines are the same


y=3/4x+2
the slope is 3/4

the slope of a line parallel to that is 2/3
7 0
3 years ago
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Besides the 90° angle measure, what are the other two angle measures of a right triangle with side lengths 5, 12, and 13? Round
olga nikolaevna [1]
The aswer is (B) 23° and 67°<span>
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3 0
3 years ago
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If 4cm on the map represents 3km in reality, what is the real distance between the village and the sea, 32cm away on the map?
Lady bird [3.3K]
32 cm / 4 cm = 8

3 km x 8 = 24 km

it would be 24 km
5 0
3 years ago
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