Выполните действия: 1) (2 3/25+9,6-5,72): 0,15/10,92: (2,6*0,5)-0,4 2)4 2/3-5/9*2 4/7/(2 1/7+1 2/3): 5+0,8*1,25

1) (2 3/25+9,6-5,72):0,15/10,92:(2,6*0,5)-0,4=
=(53/25+9,6-5,72):0,15/10,92:1,3-0,4=
=(2,12+9,6-5,72):0,15/8,4-0,4=
=6:0,15/8=40/8=5

2)4 2/3-5/9*2 4/7/(2 1/7+1 2/3):5+0,8*1,25=
=14/3-5/9*18/7/(15/7+5/3):5+1=
=14/3-10/7/((15*3+5*7)/21):5+1=
=((14*7-10*3)/21)/(80/21):5+1=(68/21)/16/21+1=(68/21)/(16/21+21/21)=
=(68/21)/(37/21)=68/37=1 31/37