Question

alguém me ajuda?

A) 0,7= /10= /20= 21/ = /40

B) 0,55 = 11/20= /40= 33/ = /80= 55/

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Answer 1

a)

$0,7 = \frac{7}{10} = \frac{14}{20} = \frac{21}{30} = \frac{28}{40}$

b)

$0,55 = \frac{11}{20} = \frac{22}{40} = \frac{33}{60} = \frac{44}{80} = \frac{55}{100}$