Question

(-3 3/4 ) × (3 5/8 - 3 103/600) +4,7 =?

Answer 1

1. 3 5/8 - 3 103/600 = 272/600
2. -3 3/4 * 272/600 = -68/40
3.-68/40 + 44/10 = -2,7
ответ:-2,7

Answer 2

To solve the expression, let's break it down step by step:

Step 1: Simplify the expression within the parentheses: (3 5/8 - 3 103/600)

To subtract mixed fractions, we need to first convert them to improper fractions: 3 5/8 = (8 * 3 + 5) / 8 = 19 / 8 3 103/600 = (600 * 3 + 103) / 600 = 1903 / 600

Now, subtract the fractions: (19/8) - (1903/600)

To subtract fractions, they must have the same denominator: (19/8) - (1903/600) = (19/8) - (1903/600) * (8/8) = (19/8) - (15224/4800)

Now, find a common denominator, which is 4800: (19/8) - (15224/4800) = (19/8) - (15224/4800) * (600/600) = (19/8) - (9134400/4800)

Now, subtract the fractions: (19/8) - (9134400/4800) = (19/8) - (1907/1) = (19 - 1907) / 8 = -1888/8 = -236

Step 2: Calculate the first part of the expression: (-3 3/4) * (-236)

To multiply mixed fractions, first convert them to improper fractions: -3 3/4 = - (4 * 3 + 3) / 4 = -15/4

Now, multiply the fractions: -15/4 * (-236) = (15 * 236) / 4 = 3540/4 = 885

Step 3: Add the last part of the expression: 885 + 4.7

Step 4: Calculate the final result: 885 + 4.7 = 889.7

Therefore, the result of the expression is 889.7.