а) 3,75-2:0,25+1,4×3,55+1,2^2
=3,75-8+4,97+(6/5)
=0,72+36/25
=18/25+36/25
=54/25= 2 4/25= 2,16
б)6,24:0,4+7,65×20-1000×0,01×5^2
=15,6+153-1000×0,01×25
=15,6+153-250
=-81,4 = -407/5 = -81 2/5
............................................
а) 3,75-2:0,25+1,4×3,55+1,2^2
=3,75-8+4,97+(6/5)
=0,72+36/25
=18/25+36/25
=54/25= 2 4/25= 2,16
б)6,24:0,4+7,65×20-1000×0,01×5^2
=15,6+153-1000×0,01×25
=15,6+153-250
=-81,4 = -407/5 = -81 2/5
............................................