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How do you work the following problem:517 37/50 + 312 3/100? and I also need to turn in to a decimal

1 Answer

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Calculate the following sum of mixed fractions:


517(37)/(50)+312(3)/(100)

Before adding the fractions, we should express them as improper fractions:


517+(37)/(50)+312+(3)/(100)

We can add the integers 517+312=829

And now the fractions:


(37)/(50)+(3)/(100)

Expand the first fraction to have a denominator 100:


(2\cdot37)/(2\cdot50)+(3)/(100)=(74)/(100)+(3)/(100)=(77)/(100)

Now we simply join the integer part with the proper fraction:


829(77)/(100)

It's the final answer

Let's elaborate on the sum:


(37)/(50)+(3)/(100)

We need to make both denominators equal and then add the numerators easily

For example:


(3)/(8)+(4)/(8)=(7)/(8)

Note the fraction 37/50 does not have the same denominator as 3/100

How can we make them equal?

Multiply by 2

both the 37 and 50

To express the result as decimal, we divide the fraction and add it to the integer:


829(77)/(100)=829+(77)/(100)=829+0.77=829.77

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