(6 1/8 * 1 2/7 - 2 11/14 * 1 8/13) * 1 3/5

Предыдущий
вопрос Следующий
вопрос

To solve this expression, we need to follow the order of operations, or PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).

First, let's simplify the multiplication within the parentheses:
6 1/8 1 2/7 = (49/8) (9/7) = 441/56

2 11/14 1 8/13 = (37/14) (21/13) = 777/182

Now we subtract these results:
441/56 - 777/182

To subtract these fractions, we need a common denominator, which is 56*182 = 10192.

441/56 = (441/56) (182/182) = 79842/10192
777/182 = (777/182) (56/56) = 43368/10192

Now we subtract:
79842/10192 - 43368/10192 = 36474/10192

Lastly, we multiply by 1 3/5:
36474/10192 8/5 = (36474 8) / (10192 * 5) = 291792 / 50960 = 117/205

So, the final answer is 117/205.