(2 3/25+9.6-5 .72):0.15 _________________ 10.92:(2.6*0.5)-0.4
(2 3/25+9.6-5 .72):0.15 (2,12+9.6-5 .72):0.15_________________= -------------------------------------= 10.92:(2.6*0.5)-0.4 10.92:1,3-0.4 6:0.15 =------------=40/8=5 8,4-0.4