Question

2 3/4-(-1 1/2)+(-3 5/6) решить полностью

Answer 1

$2 \frac{3}{4} -(-1 \frac{1}{2} )+(-3 \frac{5}{6} )=2 \frac{9}{12} +1 \frac{6}{12}-3 \frac{10}{12} =\frac{9+6-10}{12} =\frac{5}{12}$

Answer 2

To solve the expression 2 3/4 - (-1 1/2) + (-3 5/6) completely, follow these steps:

Step 1: Convert mixed numbers to improper fractions. 2 3/4 = (2 * 4 + 3)/4 = 11/4 -1 1/2 = (-1 * 2 + 1)/2 = -1/2 -3 5/6 = (-3 * 6 + 5)/6 = -13/6

Step 2: Simplify the expression by combining the fractions. 2 3/4 - (-1 1/2) + (-3 5/6) = 11/4 - (-1/2) + (-13/6)

Step 3: When subtracting a negative number, it's the same as adding the positive value. 11/4 + 1/2 + (-13/6)

Step 4: Find a common denominator for the fractions (the least common multiple of 4 and 6, which is 12). Convert each fraction to have a denominator of 12: 11/4 = (11/4) * (3/3) = 33/12 1/2 = (1/2) * (6/6) = 6/12 -13/6 = (-13/6) * (2/2) = -26/12

Step 5: Add the fractions together. 33/12 + 6/12 + (-26/12) = (33 + 6 - 26)/12 = 13/12

Step 6: Convert the improper fraction back to a mixed number (if necessary). 13/12 = 1 1/12

So, the solution to the expression is 1 1/12.