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Question
the directions of her homework are to write the equivalent decimal for the fraction. for exapmple 18/25. we need an explanation of how to get the answer. thanks
Hello Shari,
18/25 is the same as eighteen lots of "one twenty-fifth".
18/25=18*(1/25)...[#1]
Now, 1/25 is represented by 0.04 in decimal.
To see this, we can multiply both the numerator and denominator in the fraction "1/25" by 4, without changing the size of this quantity.
That is, 1/25= (1*4)/(25*4)=4/100 which is equivalent to 0.04.
Finally, continuing from [#1], 18*(1/25)=18*0.04=0.72
or 72%.
Cheers.
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