1)6 5/6-2,875+2 11/12 -7 8/3=2)3 9/16-5,25-4 1/8+4,8125=Плииииииз!!

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вопрос Следующий
вопрос

1) To solve this problem, we first need to convert all the mixed numbers to improper fractions.

6 5/6 = 41/6
2 11/12 = 35/12
7 8/3 = 29/3

Now we can rewrite the equation:

41/6 -2875/1000 + 35/12 - 29/3

Next, we need to find a common denominator for all the fractions. The least common multiple of 6, 12, and 3 is 12:

(41/6 2/2) - (2875/1000) + (35/12 1/1) - (29/3 * 4/4)
82/12 - 2875/1000 + 35/12 - 116/12

Now we can add and subtract the fractions:

(82 - 2875) / 12 + 35/12 - 116/12
(-2793) / 12 + 35/12 - 116/12
(-2758) / 12
-229.83

Therefore, the solution to the equation is -229.83.

2) The requested expression is:

3 9/16 - 5.25 - 4 1/8 + 4.8125

First, we convert all mixed numbers to improper fractions:

3 9/16 = 51/16
4 1/8 = 33/8

Now we can rewrite the equation:

51/16 - 5.25 - 33/8 + 4.8125

Next, we need to add and subtract the fractions:

(51/16) - (33/4) - 5.25 + 4.8125
(51/16) - (132/16) - 33/4 + 193/40
-81/16 - 33/4 + 193/40

Now we find a common denominator for all the fractions. The least common multiple of 16, 4, and 40 is 160:

(-81 10) / 160 - (33 40) / 160 + 193 / 40
-810/160 - 1320/160 + 193/40
-2130/160 + 193/40

Now we can add and subtract the fractions:

-2130/160 + 193/40
-13.3125 + 4.8125
-8.5

Therefore, the solution to the equation is -8.5.