Question

50 3/7-49-31/35+53 16/35-52 54/5

Answer 1

$50 \frac{3}{7} - 49 = 1 \frac{3}{7} - \frac{31}{35} = \\ 1 \frac{15}{35} - \frac{31}{35} = \frac{50}{35} - \frac{31}{35} = \frac{19}{35}$
$\frac{19}{35} + 53 \frac{16}{35} = 53 \frac{35}{35} = 54$
$54 - 52 \frac{54}{5} = 54 - 62.8 = - 8.8$
Ответ:-8,8

Answer 2

To solve the given expression, we need to perform the operations step by step. Remember to follow the order of operations (PEMDAS/BODMAS):

1. Parentheses/Brackets
2. Exponents/Orders
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's calculate the expression:

50 + 3/7 - 49 - 31/35 + 53 16/35 - 52 54/5

Step 1: Perform addition and subtraction from left to right: 50 + 3/7 = (50 * 7 + 3) / 7 = (350 + 3) / 7 = 353/7

(353/7) - 49 = (353/7) - (49 * 7/7) = (353/7) - 343/7 = (353 - 343) / 7 = 10/7

(10/7) - 31/35 = (10 * 5 - 31 * 1) / (7 * 5) = (50 - 31) / 35 = 19/35

(19/35) + 53 = (19 * 5 + 53 * 35) / 35 = (95 + 1855) / 35 = 1950/35 = 390/7

(390/7) - 52 = (390 - 52 * 7) / 7 = (390 - 364) / 7 = 26/7

Step 2: Perform the final addition and subtraction: 26/7 + 54/5 = (26 * 5 + 54 * 7) / (7 * 5) = (130 + 378) / 35 = 508/35

So, the simplified result of the expression is 508/35.