Question

помогите
1) |1.5|+|8| * |1.5+8|
2)|7|+|-5/9| *|7-5/9|
3)|- 1 3/5|+|- 4 1/6|*|4 1/6 + 1 3/5|
4)|2 3/8| +|0.8|*|2 3/8 -0.8
​

Answer 1

Пошаговое объяснение:

1)

|1,5| + |8| * |1,5 + 8| = 1,5 + 8 * 9,5 = 1,5 + 76 = 77,5

2)

|7| + |-5/9| * |7 - 5/9| = 7 + 5/9 * 6 4/9 =

7 + 5/9 * 58/9 = 7 + 290/81 = 7 + 3 47/81

3)

|-1 3/5| + |-4 1/6| * |4 1/6 + 1 3/5| =

1 3/5 + 4 1/6 * |4 5/30 + 1 18/30| =

1 3/5 + 4 1/6 * |5 23/30| =

1 3/5 + 4 1/6 * 5 23/30 =

1 3/5 + 25/6 * 173/30 = 1 3/5 + 5/6 * 173/6 =

1 3/5 + 865/36 = 1 3/5 + 24 1/36 =

1 108/180 + 24 5/180 = 25 113/180