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3 years ago

What is 7/4 as a mixed number?

Mathematics

2 answers:

Levart [38]3 years ago

7 0

Divide 7÷4=1.75 to change it into a mixed number
it would be 1 3/4

Nimfa-mama [501]3 years ago

4 0

1 3/4 because you have but how many times 4 goes into 7. Then use the difference as the numerator and use 4 as the bottom

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How to make a mixed number a improper fraction

Elena L [17]

A mixed number of the form $a\frac{b}{c}$ can be turned into an improper fraction by using the fact that a mixed number is really het whole number plus its fraction part, so

$a\frac{b}{c} = {\displaystyle a + \frac{b}{c}=\frac{a}{1}+\frac{b}{c}}$

Then do the usual procedure for adding fractions via common denominator.

For example, to convert the mixed number $5 \frac{1}{4}$ into an improper fraction, we have

$5\frac{1}{4}={\displaystyle 5 +\frac{1}{4}=\frac{5}{1}+\frac{1}{4}}$

To add $\frac{5}{1}+\frac{1}{4}$ , we need $\frac{5}{1}$ to have a denominator of 4, so we multiply the numerator and denominator by 4 to get

$=\frac{5\cdot 4}{1 \cdot 4}+\frac{1}{4}=\frac{20}{4}+\frac{1}{4} = \frac{21}{4}$

Therefore,

$5\frac{1}{4} = \frac{21}{4}$

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3 years ago

What is a 5a − 8 = 8 + a

In-s [12.5K]

Answer:

a=4

Step-by-step explanation:

5a-8=8+a

4a-8=8

4a=16

a=4

3 0

3 years ago

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Step-by-step explanation:

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3 years ago

What is the value of 3-(-2)?

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Step-by-step explanation:

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An equation is shown below:

Alex787 [66]

Multiply 4 with (2x-5)
8x-20+15=11
add 20 both sides
8x+15=31
subtract 15 both sides
8x=16
divide both sides by the x (8)
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3 years ago