Need help with my 4th grader math with fractions

Liz91899

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Oct 4, 2011
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We doing practice tests for the NYC Math exams.

We need help with the following question:

At Mann Elementary School, 0.7 of the students walk to school. What fraction of the students walk to school?

a. 3/100
b. 7/100
c. 3/10
d. 7/10

My daughter's answer is b.

I don't know how to start or answer this question. Please help me. Thank you.
 
In the Base 10 Positional System (the one most folks use on this planet, these days), the first position right of the decimal is tenths (1/10). This makes 0.7 the same as seven-tenths or 7/10. The equivalent expression for 7/100 or seven-hundreths is 0.07.
 
now I am very confused that the answer was not b. 7/100. Can anyone please walk me through this in 4th grade terms? TIA, Liz
 
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