Question

3 1/4+6 2/5-7,5(5 1/6-3,25)2 4/232/11×(14 1/3+ 2 1/6)​

Answer 1

Ответ:

1)3,75+6,4-7,5=10,15-7,5=2,65

2/11(16 2/6+1/6)=2/11•16 1/2=2/11•33/2=3

а второе задание не понятно

Answer 2

To solve the expression you provided:

Step 1: Convert mixed numbers to improper fractions. 3 1/4 = 13/4 6 2/5 = 32/5 5 1/6 = 31/6 14 1/3 = 43/3 2 1/6 = 13/6

Step 2: Simplify any operations within parentheses first. 7.5(31/6 - 3.25)2 4/232/11 × (43/3 + 13/6)

Step 3: Perform the operations inside the parentheses. 31/6 - 3.25 = (31 - 3.25 * 6) / 6 = (31 - 19.5) / 6 = 11.5/6 43/3 + 13/6 = (43 * 2 + 13) / 6 = (86 + 13) / 6 = 99/6

Step 4: Calculate the multiplications and divisions from left to right. 7.5 * 11.5/6 = 57.5/6 2 4/232/11 * 99/6 = [(2 * 232 + 4) / (11 * 6)] * (99/6) = (464 + 4) / 66 * (99/6) = 468/66 * 99/6 = 6/1 * 11/1 = 66

Step 5: Perform the remaining additions and subtractions from left to right. 13/4 + 32/5 - 57.5/6 + 66

To add fractions with different denominators, we need to find a common denominator. The common denominator for 4, 5, and 6 is 60.

Converting fractions to have a common denominator: (13/4) * (15/15) = 195/60 (32/5) * (12/12) = 384/60 (57.5/6) * (10/10) = 575/60

Now we can add the fractions: 195/60 + 384/60 - 575/60 + 66

Combine the numerators: (195 + 384 - 575) / 60 + 66

Calculate the numerator: (4 + 384 - 575) / 60 + 66 = (-187) / 60 + 66

Simplify the fraction: (-187) / 60 = (-187 / 1) * (1 / 60) = -187 / 60

Finally: -187/60 + 66 = -187/60 + 66/1 = (-187 + 3960) / 60 = 3773/60

The final result is 3773/60, which can be further simplified if desired.