Question

Срочно 30 балов Все решать !!!
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Answer 1

Ответ:

Объяснение:

1. 3 1/9 ÷2 1/3 -2 5/6=-1,5

1.1. 3 1/9 ÷2 1/3=28/9 ÷7/3=28/9 ·3/7=4/3=1 1/3

1.2. 1 1/3 -2 5/6=1 2/6 -2 5/6=-1 3/6=-1 1/2=-1,5

2. 1 5/7 -4 3/13 ÷1 19/26=-46/63

2.1. 4 3/13 ÷1 19/26=55/13 ÷45/26=55/13 ·26/45=(11·2)/9=22/9=2 4/9

2.2. 1 5/7 -2 4/9=1 45/63 -2 28/63=1 45/63 -1 91/63=-46/63

3. 10 16/17 ÷8 5/11 +1 2/3=2 49/51

3.1. 10 16/17 ÷8 5/11=186/17 ÷93/11=186/17 ·11/93=(2·11)/17=22/17=1 5/17

3.2. 1 5/17 +1 2/3=1 15/51 +1 34/51=2 49/51

4. 47/48 ÷3 13/27 -13/16=-17/32

4.1. 47/48 ÷3 13/27=47/48 ÷94/27=47/48 ·27/94=9/(16·2)=9/32

4.2. 9/32 -13/16=9/32 -26/32=-17/32