Ответы
Ответ:
Пошаговое объяснение:
1. 7/9 ·1 2/7 +43 3/4 ÷11 2/3 -3 18/25 +1 1/45 ·(37 1/2 ÷2 1/12 -1 3/23 ·9) +47/100
1.1. 37 1/2 ÷2 1/12=75/2 ·12/25=3·6=18
1.2. 1 3/23 ·9=26/23 ·9=234/23=10 4/23
1.3. 18-10 4/23=17 23/23 -10 4/23=7 19/23=180/23
1.4. 1 1/45 ·180/23=46/45 ·180/23=2·4=8
2. 7/9 ·1 2/7 +43 3/4 ÷11 2/3 -3 18/25 +8 +47/100
2.1. 7/9 ·1 2/7=7/9 ·9/7=1
2.2. 43 3/4 ÷11 2/3=175/4 ·3/35=(5·3)/4=15/4=3 3/4=3,75
3. 1+3,75-3 18/25 +8 +47/100=4,75-3,72+8+0,47=1,03+8,47=9,5
Ответ: 9,5.
2. (20 8/15 ·7 1/2 -54 3/5 ÷2 1/2)÷(3 13/21 ·8 2/5 -29 2/5) -5/6 ·1 1/5 +21/25
2.1. 20 8/15 ·7 1/2=308/15 ·15/2=154
2.2. 54 3/5 ÷2 1/2=273/5 ·2/5=546/25=21,84
2.3. 154-21,84=132,16
2.4. 3 13/21 ·8 2/5=76/21 ·42/5=(76·2)/5=152/5=30 2/5
2.5. 30 2/5 -29 2/5=1
3. 132,16÷1 -5/6 ·1 1/5 +21/25
3.1. 132,16÷1=132,16
3.2. 5/6 ·1 1/5=5/6 ·6/5=1
4. 132,16-1 +21/25=131,16+0,84=132
Ответ: 132.