galanzuly galanzuly 29-06-2021 Mathematics contestada find the sum or difference of the following ( simplify all answers) a) 1/5 + 3/5= b) 5/8-1/8=c) 8/9 + 4/9 =d) 3/5+ 1/10= e) 2/3 +3/4= f) 4/5- 1/3=