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OpenStudy (anonymous):
which is a common denominator of 3/4,2/5 and 7/10 ? a. 10 b. 20 c. 30 d.42
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OpenStudy (anonymous):
3/4 is 75/100 2/5 is 40/100 7/10 is 70/100
OpenStudy (anonymous):
the option is a. 10 b. 20 c. 30 d.42
OpenStudy (anonymous):
In this case the answer would be a. 10 [:
OpenStudy (anonymous):
10
OpenStudy (anonymous):
why?
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OpenStudy (anonymous):
Yes ma'am.
OpenStudy (anonymous):
Because if you multiply any of them by ten it would work.
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