Question

what number should be added to-2/3 to get -1/7​

Answer 1

Answer:

Required numeric number which should be added to - 2 / 3 to get - 1 / 7 is 11 / 21.

Step-by-step-explanation:

Let the required number which should be added be a,

According to the question:

= > sum of - 2 / 3 and a = - 1 / 7

= > a + ( - 2 / 3 ) = - 1 / 7

= > a - 2 / 3 = - 1 / 7

= > a = ( - 1 / 7 ) + ( 2 / 3 )

= > a = { - ( 1 x 3 ) / ( 7 x 3 ) } + { ( 2 x 7 ) / ( 3 x 7 ) }

= > a = ( - 3 / 21 ) + ( 14 / 21 )

= > a = ( - 3 + 14 ) / 21

= > a = 11 / 21

Hence the required numeric number which should be added to - 2 / 3 to get - 1 / 7 is 11 / 21.

Answer 2

Answer:

what number should be added to-5/7 to get -2/3