Question

ayúden me porfa
$\frac{3}{21} + \frac{1}{4} + \frac{ - 2}{49}$
​

Answer 1

Respuesta:

207 / 588

Explicación paso a paso:

3 / 21

= ( 3 / 21 ) x ( 28 / 28 )

= ( 3 x 28 ) / ( 21 x 28 )

= 84 / 588

1 / 4

= ( 1 / 4 ) x ( 147 / 147 )

= ( 1 x 147 ) / ( 4 x 147 )

= 147 / 588

2 / 49

= ( 2 / 49 ) x ( 12 / 12 )

= ( 2 x 12 ) / ( 49 x 12 )

= 24 / 588

( 3 / 21 ) + ( 1 / 4 ) - ( 2 / 49 )

= ( 84 / 588 ) + ( 147 / 588 ) - ( 24 / 588 )

= ( 84 + 147 - 24 ) / 588

= ( 231 - 24 ) / 588

= 207 / 588