Verified answer

Explicação passo-a-passo:

a) 0,4444... ×10 = 10x

4,44... = 10x

0,44.... = 1x

______________ -

4 = 9x

4/9=x

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x = 4/9

b) 0,1252525.....

125,2525....= 1000x

1,2525...= 10x

__________________-

124 = 990x

124/990 = x

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x = 124/990

c) 0,545454....

54,545454 .....= 100x

0,545454...= 1x

_________________-

54 = 99x

54/99= x

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x= 54/99