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In Mathematics / Middle School | 2014-01-14

Explain how you know that [tex]\frac{7}{12}[/tex] is greater than [tex]\frac{1}{3}[/tex] but less than [tex]\frac{2}{3}[/tex].

Asked by antoniotran9

Answer (3)

7/12 1/3=4/12 2/3=8/12
7/12>1/3 7/12<2/3

Answered by LaLa79 | 2024-06-10

The easiest way to compare fractions is by having a common denominator for both fractions.
This is because , when the denominator is the same in both fractions, we will simply compare the numerators and the greater fraction will be the one having greater numerator
Part 1:
The first given fraction is 12 7 ​
The second given fraction is 3 1 ​
We can make the denominator in the second one equal to 12 by multiplying it by 4.
However, to preserve the value of the fraction, we will multiply it by 4 4 ​
This will give us:
3 1 ​ * 4 4 ​ = 12 4 ​
Now, the two fractions became 12 4 ​ and 12 7 ​
The denominator is the same, so we will compare numerators.
Since 7 is greater than 4, therefore:
12 7 ​ is the greater fraction
Part 2:
The first given fraction is 12 7 ​
The second given fraction is 3 2 ​
We can make the denominator in the second one equal to 12 by multiplying it by 4.
However, to preserve the value of the fraction, we will multiply it by 4 4 ​
This will give us:
3 2 ​ * 4 4 ​ = 12 8 ​
Now, the two fractions became 12 8 ​ and 12 7 ​
The denominator is the same, so we will compare numerators.
Since 8 is greater than 7, therefore:
12 8 ​ is the greater fraction
Hope this helps :)

Answered by Louli | 2024-06-24

The fraction 12 7 ​ is greater than 3 1 ​ because, after converting 3 1 ​ to 12 4 ​ , 7 is greater than 4. Conversely, 12 7 ​ is less than 3 2 ​ since 3 2 ​ converts to 12 8 ​ , and 7 is less than 8. Therefore, 3 1 ​ < 12 7 ​ < 3 2 ​ .
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Answered by Louli | 2024-09-30