Question

1. ( 3 1/3+5 1/6) * 2/5- 2 3/4 :1 1/10= 2. 20 - 19 1/2 * 2/3 * (3/4-3/5)= 3. ( 10 3/4 -12 : 1 1/5)* 4/9 + 2 1/6=

Answer 1

Ответ:

брат не знаю есть проблемы решай сам

Answer 2

Let's solve each of these mathematical expressions step by step:

1. (3 1/3 + 5 1/6) * 2/5 - 2 3/4 ÷ 1 1/10

   First, simplify the fractions: 3 1/3 = 10/3 5 1/6 = 31/6 2 3/4 = 11/4 1 1/10 = 11/10

   Now, perform the calculations: (10/3 + 31/6) * 2/5 - (11/4 ÷ 11/10)

   To add 10/3 and 31/6, find a common denominator, which is 6: (20/6 + 31/6) * 2/5 - (11/4 ÷ 11/10)

   Now, add the fractions inside the parentheses: (51/6) * 2/5 - (11/4 ÷ 11/10)

   Multiply the fractions: (17/2) * 2/5 - (11/4 ÷ 11/10)

   Now, deal with the division: (17/2) * 2/5 - (11/4 * 10/11)

   Simplify the fractions further: (17/2) * (2/5) - (1/4)

   Multiply the fractions: (17/5) - (1/4)

   To subtract these fractions, find a common denominator, which is 20: (17/5) * (4/4) - (5/20)

   Now, subtract the fractions: (68/20) - (5/20)

   Finally, subtract the fractions: (68 - 5) / 20 = 63/20

   The result is 63/20.

2. 20 - 19 1/2 * 2/3 * (3/4 - 3/5)

   First, simplify the fractions: 19 1/2 = 39/2

   Now, perform the calculations: 20 - (39/2) * 2/3 * (3/4 - 3/5)

   Begin by simplifying the expressions inside the parentheses: 20 - (39/2) * 2/3 * (15/20 - 12/20)

   Now, calculate the values inside the parentheses: 20 - (39/2) * 2/3 * (3/20)

   Multiply the fractions: 20 - (39/2) * (2/3) * (3/20)

   Now, simplify the fractions: 20 - (13/20)

   To subtract these fractions, find a common denominator, which is 20: (400/20) - (13/20)

   Now, subtract the fractions: (400 - 13) / 20 = 387/20

   The result is 387/20.

3. (10 3/4 - 12 ÷ 1 1/5) * 4/9 + 2 1/6

   First, simplify the fractions: 10 3/4 = 43/4 1 1/5 = 6/5 2 1/6 = 13/6

   Now, perform the calculations: (43/4 - 12 ÷ 6/5) * 4/9 + 13/6

   Start by dealing with the division: (43/4 - (12 * 5/6)) * 4/9 + 13/6

   Calculate the value inside the parentheses: (43/4 - 60/6) * 4/9 + 13/6

   Now, simplify the fractions: (43/4 - 10) * 4/9 + 13/6

   Subtract 10 from 43/4: (43/4 - 40/4) * 4/9 + 13/6

   Calculate the result inside the parentheses: (3/4) * 4/9 + 13/6

   Multiply the fractions: (3/9) + 13/6

   Simplify further: (1/3) + 13/6

   To add these fractions, find a common denominator, which is 6: (2/6) + 13/6

   Now, add the fractions: (2 + 13) / 6 = 15/6

   Finally, simplify the fraction: 15/6 = 5/2

   The result is 5/2.