Question

18/27+7/27-8/27 18/19-(13/19-8/19Зарание спасибо

Answer 1

18/27+7/27-8/27=17/27
18/19-(13/19-8/19)=13/19

Answer 2

Это 2 разных примера или вы забыли знак поставить? если 1,то:
1.
1)18/27+7/27=25/27
2)25/27-8/27=17/27

2.
1) 13/19-8/19=5/19
2)18/19-5/19=13/19

Answer 3

To solve the given expressions, let's calculate them step by step:

1. 18/27 + 7/27 - 8/27: When you have fractions with the same denominator, you can simply add or subtract the numerators. In this case, the denominator is 27. Numerator sum = 18 + 7 - 8 = 17 The expression becomes: 17/27

2. 18/19 - (13/19 - 8/19): Similar to the previous expression, the denominators are the same, which is 19. Inside the parentheses, we have a subtraction operation: 13/19 - 8/19. Numerator difference = 13 - 8 = 5 The expression inside the parentheses becomes: 5/19 Now we can substitute this back into the main expression. Numerator difference = 18 - 5 = 13 The final expression is: 13/19

Therefore, the results are:

1. 18/27 + 7/27 - 8/27 = 17/27
2. 18/19 - (13/19 - 8/19) = 13/19

Заранее спасибо! (Thank you in advance!)