Question

5/7 х 2 2/5 - 1 3/11 =

Answer 1

Ответ:

34/77

Пошаговое объяснение:

5/7*2 2/5=5/7*12/5=12/7=1 5/7

1 5/7-1 3/11=1 55/77-1 21/77=34/77

Answer 2

To solve the expression, we'll follow the order of operations (PEMDAS/BODMAS) which stands for Parentheses/Brackets, Exponents/Orders, Multiplication and Division, and Addition and Subtraction from left to right.

Step 1: Convert mixed numbers to improper fractions. 2 2/5 can be written as an improper fraction: (5 * 2 + 2) / 5 = 12/5 1 3/11 can be written as an improper fraction: (11 * 1 + 3) / 11 = 14/11

Step 2: Perform the multiplication and subtraction operations. 5/7 * 12/5 - 14/11

Step 3: Perform the multiplication first. (5 * 12) / (7 * 5) - 14/11 60 / 35 - 14/11

Step 4: Find a common denominator (in this case, the least common multiple of 35 and 11, which is 385). (60 * 11) / (35 * 11) - (14 * 35) / (11 * 35) 660 / 385 - 490 / 385

Step 5: Perform the subtraction. (660 - 490) / 385 170 / 385

Step 6: Simplify the fraction, if possible. Divide both the numerator and the denominator by their greatest common divisor, which is 5. 170 ÷ 5 / 385 ÷ 5 34 / 77

So, the result of the expression is 34/77.