51-(3,75:3+86,45:24,7)*2,4=
51-(3,75:3+86,45:24,7)*2,4=39.6 1)3.75:3=1.25 2)86.45:24.7=3.5 3)1.25+3.5=4.75 4)4.75*2.4=11.4 5)51-11.4=39.6