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MaRussiya [10]
3 years ago
12

can some one explain to me how fractions work who ever explains it well gets brainliest, adding, subtracting, multiplying, divid

ing
Mathematics
1 answer:
Ludmilka [50]3 years ago
4 0
Adding: When adding fractions, you want to make sure that the denominator is the same for both fractions. If they are already the same, just add both the numerators to get the answer. For example,
\frac{3 }{5}  +  \frac{1}{5}  =  \frac{4}{5}
If the denominator is different in both fractions, you have to find the least common denominator, or LCD. The LCD is the smallest number that both denominators can multiply into. For example, say you need to find
\frac{1}{6}  +  \frac{1}{3}

Multiply both the numerator and the denominator of (1/3) by 2 to get (2/6). This way, the denominators are the same and you can find the answer.
\frac{1}{6}  +  \frac{2}{6}  =  \frac{3}{6}
In the case that one denominator does not go into the other, find the smallest number they both multiply into. For example,
\frac{1}{3 }  +  \frac{1}{4}
Here, the smallest number that both 4 and 3 multiply into is 12. Multiply both fractions by the correct amount to make both denominators 12. It would then become
\frac{4}{12}  +  \frac{3}{12}  =  \frac{7}{12}
Subtraction: follow the same rules as addition, except subtract the numerators instead of adding them.

Multiplication: multiply both numerators and both denominators.
\frac{2}{3}  \times  \frac{4}{5}  =  \frac{8}{15}
Division: Flip one of the fractions and multiply.
\frac{2}{3}   \div   \frac{4}{5}
Becomes
\frac{2}{3}  \times  \frac{5}{4}  =  \frac{10}{12}  =  \frac{5}{6}
Hope this explains it all. Let me know if you have any questions :)
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I need help on this question pls​
Ivanshal [37]

Answer:

t = 17.5 f = 12

Step-by-step explanation:

If <em>MNOP </em>is a square, you know that each angle is going to be 90°. To solve, let's first set each equation equal to 90°:

90 = 4t + 20

and

90 = 7f + 6

Then solve both equations:

90 = 4t + 20 \\ 70 = 4t \\ 17.5 = t

and

90 = 7f + 6 \\ 84 = 7f \\ 12 = f

I hope that helps!

7 0
2 years ago
What is the solution set of - |x |= -8?<br> O {8}<br> O {-8)<br> O {-8, 8}<br> O no solution
torisob [31]
The answer is C (3rd answer choice) O {-8,8}.
5 0
3 years ago
-2x - 10 =15 help me plzzzz
Dima020 [189]

Answer:

x = -12.5

Step-by-step explanation:

Solve :  -2x - 10 =15

-2x - 10 = 15

-2x = 15 + 10

-2x = 25

x = -25/2

x = -12.5

6 0
3 years ago
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What is 60 - 56 divided by 8•2 will give brainliest
Paladinen [302]

Answer:

1/4

Step-by-step explanation:

if you subtract the top, and multiply the bottom, the outcome is 4/16 or 1/4

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