Question

Вычислите: 1) -(2/7)-(-3/14) 2) -5/6-3/4

Answer 1

1) -2/7 + 3/14 = -4/14 + 3/14 = -1/14
2) -5/6 - 3/4 = -10/12 - 9/12 = -19/12 = -1 7/12

Answer 2

1) -(2/7) - (-3/14) First, we can simplify the expression inside the parentheses: = -(2/7) + (3/14) To add these fractions, we need to find a common denominator, which in this case is 14. So we can rewrite the fractions with the common denominator: = -2*2/14 + 3/14 = -4/14 + 3/14 Now we can add the fractions: = -1/14

2) -5/6 - 3/4 First, we need to find a common denominator, which in this case is 12. So we can rewrite the fractions with the common denominator: = -10/12 - 9/12 Now we can subtract the fractions: = -19/12

So the final result is: 1) -(2/7) - (-3/14) = -1/14 2) -5/6 - 3/4 = -19/12