Question

1. Transforme as porcentagens em fração
irredutível e em número decimal.
a) 80%
b) 55%
c) 46%
d) 150%​

Answer 1

bom dia !

a)80%

$\frac{80}{100} \div 10 = \frac{8}{10} \div 2 = { \frac{4}{5}} = \red{0.8}$

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b)55%

$\frac{55}{100} \div 5 = \frac{11}{20} = \red{0.55}$

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c)46%

$\frac{46}{100} \div 2 = \frac{23}{50} = \red{0.46}$

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d)150%

$\frac{150}{100} \div 10 = \frac{15}{10} \div 5 = \frac{3}{2} = \red{1.5}$

A.tt BHETAALFHA

Answer 2

Explicação passo-a-passo:

$80\% = \frac{80}{100} = \frac{4}{25} =0,80 \\ \\ 55 \% = \frac{55}{100} = \frac{11}{20} =0,56 \\ \\ 46 \% = \frac{46}{100} = \frac{23}{50} =0,46 \\ \\ 150\% = \frac{150}{100} = \frac{3}{2} =1,50$