Question

2 1/6 -с = 3 11/13 сколько будет?

Answer 1

Ответ: c = -1$\frac{53}{78}$

Пошаговое объяснение:

2$\frac{1}{6}$-c=3$\frac{11}{13}$

-c=3$\frac{11}{13}$-2$\frac{1}{6}$

-с=(3-1)+($\frac{11}{13}$-$\frac{1}{6}$

-с=1+($\frac{66}{78}$-$\frac{13}{78}$)

-с=1$\frac{53}{78}$

c=-1$\frac{53}{78}$

Проверка:

2$\frac{1}{6}$-(-1$\frac{53}{78}$)=2$\frac{1}{6}$+1$\frac{53}{78}$=(2+1)+($\frac{1}{6}$+$\frac{53}{78}$=3+$\frac{13+53}{78}$=3$\frac{66}{78}$=3$\frac{11}{13}$ (верно)

Answer 2

To solve the equation, let's first convert the mixed numbers into improper fractions.

2 1/6 can be written as (2 * 6 + 1) / 6 = 13/6. 3 11/13 can be written as (3 * 13 + 11) / 13 = 50/13.

Now, the equation becomes:

(13/6) - c = 50/13

To solve for 'c,' we need to isolate 'c' on one side of the equation. First, let's get rid of the fractions by finding a common denominator, which is 6 * 13 = 78.

Multiply both sides of the equation by 78 to eliminate the fractions:

78 * (13/6) - 78 * c = 78 * (50/13)

Simplifying:

13 * 13 - 78c = 50 * 6

169 - 78c = 300

Next, let's isolate 'c' by moving the constant term to the other side:

-78c = 300 - 169

-78c = 131

Finally, divide by -78 to solve for 'c':

c = 131 / (-78)

c ≈ -1.6795

So, the value of 'c' is approximately -1.6795.