Question

Помогите пожалуйста: 1) 29/30-5/18:4 1/6 2) 2,34-0,7*1,6 3) (5,9-2,3):40 4) (2 13/48+2 5/12):3 3/4-9 3/4: 12

Answer 1

Ответ:

Все на фотоО!!!

Пошаговое объяснение:

Answer 2

1) To solve the expression 29/30 - 5/18:4 + 1/6, we can follow the order of operations (PEMDAS/BODMAS).

First, let's simplify the division 5/18:4. Dividing 5/18 by 4 gives us 5/72.

Next, let's add the fractions 29/30 and 5/72. To add fractions, we need a common denominator. The least common multiple of 30 and 72 is 360.

Converting 29/30 and 5/72 to have a denominator of 360, we get (29/30) * (12/12) = 348/360 and (5/72) * (5/5) = 25/360.

Adding 348/360 and 25/360 gives us 373/360.

Finally, let's add 373/360 and 1/6. To add fractions, we need a common denominator. The least common multiple of 360 and 6 is 720.

Converting 373/360 and 1/6 to have a denominator of 720, we get (373/360) * (2/2) = 746/720 and (1/6) * (120/120) = 120/720.

Adding 746/720 and 120/720 gives us 866/720.

Therefore, the value of the expression 29/30 - 5/18:4 + 1/6 is 866/720.

2) To solve the expression 2.34 - 0.7 * 1.6 + 3, we can follow the order of operations (PEMDAS/BODMAS).

First, let's multiply 0.7 and 1.6. Multiplying 0.7 and 1.6 gives us 1.12.

Next, let's subtract 1.12 from 2.34. Subtracting 1.12 from 2.34 gives us 1.22.

Finally, let's add 1.22 and 3. Adding 1.22 and 3 gives us 4.22.

Therefore, the value of the expression 2.34 - 0.7 * 1.6 + 3 is 4.22.

3) To solve the expression (5.9 - 2.3):40 + 4, we can follow the order of operations (PEMDAS/BODMAS).

First, let's subtract 2.3 from 5.9. Subtracting 2.3 from 5.9 gives us 3.6.

Next, let's divide 3.6 by 40. Dividing 3.6 by 40 gives us 0.09.

Finally, let's add 0.09 and 4. Adding 0.09 and 4 gives us 4.09.

Therefore, the value of the expression (5.9 - 2.3):40 + 4 is 4.09.

4) To solve the expression (2 + 13/48 + 2 + 5/12):3 + 3/4 - 9 + 3/4:12, we can follow the order of operations (PEMDAS/BODMAS).

First, let's simplify the addition 2 + 2. Adding 2 and 2 gives us 4.

Next, let's simplify the addition 13/48 + 5/12. To add fractions, we need a common denominator. The least common multiple of 48 and 12 is 48.

Converting 13/48 and 5/12 to have a denominator of 48, we get (13/48) * (1/1) = 13/48 and (5/12) * (4/4) = 20/48.

Adding 13/48 and 20/48 gives us 33/48.

Next, let's simplify the division 33/48:3. Dividing 33/48 by 3 gives us 11/48.

Next, let's simplify the addition 3/4 + 9. Adding 3/4 and 9 gives us 9 3/4.

Finally, let's simplify the division 3/4:12. Dividing 3/4 by 12 gives us 1/16.

Now, let's add the results together: 4 + 11/48 + 9 3/4 + 1/16.

To add mixed numbers, we need to convert them to improper fractions. Converting 9 3/4 to an improper fraction, we get (4 * 9 + 3)/4 = 39/4.

Adding 4, 11/48, 39/4, and 1/16 gives us 2017/48.

Therefore, the value of the expression (2 + 13/48 + 2 + 5/12):3 + 3/4 - 9 + 3/4:12 is 2017/48.