Question 1049925


A. 

{{{-3}}}{{{ 3/4}}} + {{{1}}}= {{{-3}}}{{{ 2/3}}} -{{{ (-1)}}}

{{{-15/4+ 1= -11/3+1}}}

{{{-15/4+ 4/4= -11/3+3/3}}}

{{{-11/4= -8/3}}}

{{{-11*3= -8*4}}}

{{{-33<> -32}}}-> so,{{{-3}}}{{{ 3/4}}} + {{{1}}}= {{{-3}}}{{{ 2/3}}} -{{{ (-1)}}}  is false



B. 

{{{-12}}}{{{ 7/12}}} + ({{{-9}}}{{{ 5/6}}}) = {{{3}}}{{{ 7/12}}}

{{{-151/12 + (-59/6) = 43/12}}}

{{{-151/12 -59/6 = 43/12}}}

{{{-151/12 -118/12 = 43/12}}}

{{{-269/12 = 43/12}}}

{{{-269 <> 43}}}-> {{{-12}}}{{{ 7/12}}} + ({{{-9}}}{{{ 5/6}}}) = {{{3}}}{{{ 7/12}}} is false



C. 

{{{6}}}{{{ 2/5}}} - ({{{-7}}}{{{ 1/10}}})= {{{13}}}{{{ 1/2}}}

{{{32/5 - (-71/10)= 27/2}}}

{{{32/5 +71/10= 27/2}}}

{{{64/10 +71/10=135/10}}}

{{{(64 +71)/10=135/10}}}

{{{135/10=135/10}}}-> so, {{{6}}}{{{ 2/5}}} - ({{{-7}}}{{{ 1/10}}})= {{{13}}}{{{ 1/2}}} is {{{true}}}