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18-01-2017
Mathematics

contestada

A. 3/8 divided by 13/16

B. 1/2 divided by 1/4

C. 2/5 divided by 14/15

D. 4/9 divided by 16/27

Respuesta :

apologiabiology apologiabiology

18-01-2017

remember, when dividing by fractions, invert an multiply
(a/b)/(c/d)=(a/b)(d/c)=(ad)/(bc)

A. (3/8)/(13/16)=(3/8)(16/13)=48/104=6/13

B. (1/2)/(1/4)=(1/2)(4/1)=4/2=2/1=2

C. (2/5)/(14/15)=(2/5)(15/14)=30/70=3/7

D. (4/9)/(16/27)=(4/9)(27/16)=108/144=3/4

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