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Question

Graph 25125 and 64128 as decimals on a number line. The larger proportion .

A
is 64128
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B
is 25125
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C
can't be determined
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Solution

The correct option is A is 64128
Let's convert the fractions into decimals before graphing them on a number line.

25125=255×25

We cancel 25 from numerator and denominator.

255×25=15

To convert 15 into a decimal number, we convert the denominator to 10 by multiplying 2 in numerator and denominator.

15=1×25×2=210=0.2

Now, let's convert 64128 into a decimal number.

64128=642×64=12=0.5

Hence, the two proportions are reduced to 0.2 and 0.5.

As both are tenths hence, we can compare them.

0.5>0.2

Let's verify the same by plotting them on a number line.

As 0.2 and 0.5 are between 0 and 1, we divide the space into 10 equal intervals to plot the numbers.​​​​​​​


We observe here that 0.5 comes to the right of 0.2 on a number line.

0.5>0.2 is indeed correct.

Hence, 64128 is larger that 25125.

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