Question

Hola me ayudan ....
$\frac{3}{10} + \frac{4}{5} - \frac{2}{8}$
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Answer 1

Respuesta:

84 / 40

Explicación paso a paso:

3 / 10

= ( 3 / 10 ) x ( 4 / 4 )

= ( 3 x 4 ) / ( 10 x 4 )

= 12 / 40

4 / 5

= ( 4 / 5 ) x ( 8 / 8 )

= ( 4 x 8 ) / ( 5 x 8 )

= 32 / 40

2 / 8

= ( 2 / 8 ) x ( 5 / 5 )

= ( 2 x 5 ) / ( 8 x 5 )

= 10 / 40

3 / 10 + 4 / 5 + 10 / 2 / 8

= 12 / 40 + 32 / 40 + 10 / 40

= ( 12 + 32 + 40 ) / 40

= 84 / 40