Question

\(\dfrac{8}{7}\)+419+\(\dfrac{-1}{7}\)

\(\dfrac{-4}{41}\)+(\(\dfrac{-37}{41}\)+2)

Answer 1

`8/7+419-1/7`

`=7/7+419`

`=1+419=420`

`-4/41+(-37/41+2)`

`=-(4/41+37/41)+2`

`=-1+2`

`=1`

Answer 2

\(\dfrac{8}{7}+419+\dfrac{-1}{7}\) 

=\(\left(\dfrac{8}{7}+\dfrac{-1}{7}\right)+419\) 

=1+419

=420

\(\dfrac{-4}{41}+\left(\dfrac{-37}{41}+2\right)\) 

=\(\dfrac{-4}{41}+\dfrac{-37}{41}+2\) 

=\(\left(\dfrac{-4}{41}+\dfrac{-37}{41}\right)+2\) 

=-1+2

=1