Question

(4/5+4/7)*(3 3/8+2 11/4)

Answer 1

Вот.................

Answer 2

Ответ:

Пошаговое объяснение:

4/5+4/7=48/35

27/8+19/4=130/16

130/16*48/35=390/35

Answer 3

To solve the expression, first, we need to simplify the fractions and then perform the arithmetic operations. Let's break it down step by step:

Step 1: Simplify the fractions

• For (4/5 + 4/7), find the least common denominator (LCD), which is 35: (4/5)(7/7) + (4/7)(5/5) = 28/35 + 20/35 = 48/35

• For (3 3/8 + 2 11/4), convert the mixed numbers to improper fractions: 3 3/8 = (8 * 3 + 3)/8 = 27/8 2 11/4 = (4 * 2 + 11)/4 = 19/4

Step 2: Perform the arithmetic operation: (4/5 + 4/7) * (3 3/8 + 2 11/4) = (48/35) * (27/8 + 19/4)

Step 3: Find the common denominator for (27/8 + 19/4), which is 8: (27/8) + (19/4) = (27/8) + (2 * 19/8) = (27/8) + (38/8) = 65/8

Step 4: Perform the multiplication: (48/35) * (65/8) = (48 * 65)/(35 * 8) = 3120/280 = 156/14 = 78/7

The final result is 78/7 or 11 1/7.