Asked by cora evans

I'm having problem understanding 2 2/7-1 1/3= can somebody help me with this question.
Answered by Ms. Sue
The first thing we do is change the fractions to equivalent fractions with the same denominator.

2 2/7 = 2 6/21
1 1/3 = 1 7/21

For this problem, we change 2 6/21 to 1 27/21

Now subtract the whole numbers and the numerators.

1 27/21 - 1 7/21 = 20/21
Answered by cora evans
I'm not understanding 3/8 divide by 1/2, can somebody help me with this also. I just don't know what to do.
Answered by Ms. Sue
To divide fractions, we need to use the reciprocal of the divisor and multiply the numerators and the denominators.

(3/8) / (1/2)
(3/8) * (2/1) = 6/8 = 3/4

Answered by cora evans
I don't know how to write 72.4823 in Expanded form. Can somebody show me how
Answered by Ms. Sue
Study this site.

http://openhighschoolcourses.org/mod/book/view.php?id=22&chapterid=46
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