Математика, вопрос задал Аноним , 1 год назад

3/5×(2 2/3÷3 1/5)
1 1/8×(9 1/3÷1 3/4)
Помогите, кто поможет тому 50 балов ПОМОГИТЕ​ желательно фото)))

Ответы на вопрос

Ответил lolkekqwal
1
знизу відповідь блаллалала
Приложения:
Ответил WODA228
0

To solve the first expression, we start by converting the mixed numbers to improper fractions:

2 2/3 = 8/3

3 1/5 = 16/5

Now we can divide:

8/3 ÷ 16/5

When dividing fractions, we invert the second fraction and multiply:

8/3 * 5/16

Multiplying across, we get:

40/48

We can simplify this fraction by dividing both the numerator and denominator by their greatest common divisor, which is 8:

40/48 = 5/6

So, the value of the first expression is 5/6.

Now let's move on to the second expression:

1 1/8 = 9/8

9 1/3 = 28/3

1 3/4 = 7/4

Now we can divide:

(9/8) ÷ (28/3) ÷ (7/4)

To divide fractions, we multiply by the reciprocal:

(9/8) * (3/28) * (4/7)

Multiplying across, we get:

(9*3*4) / (8*28*7)

Evaluating the numerator and denominator separately:

9*3*4 = 108

8*28*7 = 1568

So, the value of the second expression is 108/1568.

However, we can simplify this fraction by dividing both the numerator and denominator by their greatest common divisor, which is 4:

108/1568 = 27/392

Thus, the value of the second expression is 27/392

Новые вопросы