Question

Помогите!!! Пожалуйста!!!

Answer 1

Ответ:

Пошаговое объяснение:

1141.

а) 1. (0,8333...-0,4(6))/(1 5/6) ·(1,125+1,75-0,41(6))/0,59

1.1. 0,8333...=0,8(3)==(83-8)/90=75/90=5/6

1.2.  0,4(6)=(46-4)/90=42/90=7/15

1.3. 0,41(6)=(416-41)/900=375/900=5/12

2. (5/6 -7/15)/(11/6) ·(1 1/8 +1 3/4 -5/12)/(59/100)

2.1. 5/6 -7/15=25/30 -14/30=11/30

2.2. 1 1/8 +1 3/4 -5/12=1 3/24 +1 18/24 -10/24=2 11/24=59/24

3. (11/30)/(11/6) ·(59/24)/(59/100)=11/30 ·6/11 ·59/24 ·100/59=1/5 ·25/6=5/6

Ответ: 5/6.

б) 1. ((5/8 +2,708333...)÷2,5)/((1,3+0,7(6)+0,(36))·110/401) ·1/2

1.1. 2,708333...=2,708(3)=2 +(7083-708)/9000=2 +6375/9000=2 17/24

1.2. 0,7(6)=(76-7)/90=69/90=23/30

1.3. 0,(36)=36/99=4/11

2. ((5/8 +2 17/24) ÷5/2)/((13/10 +23/30 +4/11)·110/401) ·1/2

2.1. 5/8 +2 17/24=15/24 +2 17/24=2 32/24=3 1/3=10/3

2.2. 13/10 +23/30 +4/11=39/30 +23/30 +4/11=62/30 +4/11=1 1/15 +4/11=1 11/165 +60/165=1 71/165=236/165

3. (10/3 ÷5/2)/(236/165 ·110/401) ·1/2

3.1. 10/3 ÷5/2=10/3 ·2/5=(2·2)/3=4/3

3.2. 236/165 ·110/401=(236·2)/(3·401)

4. (4/3)/((236·2)/(3·401)) ·1/2=4/3 ·(3·401)/(236·2) ·1/2=401/236=1 165/236

Ответ: 1 165/236.