Автор - alievaadiya

Вычислите (7,8-2,625)*16/23. /. (2 5/9 +1 11/45)*2 7/19

Ответ

Автор - kamillatockaa309

.....................=14,6

1) 7,8-2,625=5,175

2) 5,175 * 16/23=5 7/40 * 16/23=207/40 * 16/23=(9*4)/10=36/10=3 6/10=3 3/5=3,6

3) 2 5/9 + 1 11/45=2 25/45+1 11/45=3 36/45=3 4/5=3,8

4) 3 4/5 * 2 7/19=19/5 * 45/19=9

5) 5,6+2/5=5,6+0,4=6

6) 13,8 : 6=2,3

7) 3-2,3=0,7

8) 8*0,7=5,6

9) 9+5,6=14,6

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