russelljeremiah russelljeremiah

18-10-2017
Mathematics

contestada

Whats 0.87 repeating as a fraction?

Respuesta :

anthony12341 anthony12341

18-10-2017

we let 100x=87.7 and 10x=8.7
then we subtract the to equations
100x-10x=8.7-87.7
90x=79
x=79/90
then 0.87777.....=79/90

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