Question

1/2 + 5/6 разделить ( 1 целая 1/2 - 3/4)*1целая 4/5

Answer 1

= 1/2 + 5/6 : (3/2 - 3/4) * 9/5 = 1/2 + 1/6 : 3/4 * 9 = 1/2 + 1/6 * 4/3 * 9 = 1/2 + 1/3 × 2 × 3 = 1/2 + 2 = 5/2 = 2 1/2

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Answer 2

Смотри.................

Answer 3

To solve this expression, follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction):

Step 1: Deal with the mixed number 1 целая 1/2 = 1 + 1/2 = 3/2

Step 2: Simplify the expression inside the parentheses (3/2 - 3/4) = (6/4 - 3/4) = 3/4

Step 3: Multiply the result by the whole number 1 целая 4/5 = 1 + 4/5 = 9/5

Step 4: Perform the division 5/6 ÷ (3/4) = 5/6 × (4/3) = (5 * 4) / (6 * 3) = 20 / 18 = 10 / 9

Step 5: Add the fractions 1/2 + 10/9 = (9/18) + (20/18) = 29/18

Step 6: Add the whole number part 29/18 + 9/5 = (5 * 29 + 18 * 9) / (5 * 18) = (145 + 162) / 90 = 307 / 90

Therefore, the final result is 307/90, which can also be expressed as a mixed number as 3 целых 37/90.