Question 1130092
{{{4}}} {{{8/9}}} + ({{{-5}}} {{{2/3}}}) 

we will break the mixed numbers into wholes and parts:

{{{4+8/9 + (-5-2/3) }}}

{{{4+8/9 -5-2/3 }}}

{{{ -1+(8/9 -2/3) }}}

{{{ -1*9/9+(8/9 -(2*3)/(3*3)) }}}...........for fraction part,  if the denominators are not the same, you must find the common denominator by finding the least common multiple (LCM)


{{{-9/9+(8/9 -6/9) }}}


{{{-9/9+2/9  }}}


{{{-7/9  }}}