nilai dari ( 1,1per3 + 1,1per8 ) - ( 2,2per3 + 1,1per4 ) adalah ...... #pake caranya

(1,1/3 +1,1/8) - ( 2,2/3 + 1,1/4 ) = (11/10/3  + 11/10/8 ) - ( 22/10/3 + 11/10/4 )          = ( 11/10x3 + 11/10x8 ) - ( 22/10x3 + 11/10x4 )                                                  = (11/30 + 11/80 ) - ( 22/30 + 11/40) = ( 88+33/240 ) - ( 88+33/120 )                      = 121/240 - 121/120 = 121 - 242/240 = - 121/240.