Question

2,(3)+5,(4)-2,(2)=

3,1(2)+4,2(5)=​

Answer 1

2,(3) = 21/9 = 7/3

5,(4) = 49/9

2,(2) = 20/9

7/3+49/9-20/9 = 36/9 = 4

------------------------

3,1(2)= 281/90

4,2(5)= 383/90

281/90+383/90= 664/90