Question

Помогите пожалуйста с:За первый день машинистка перепечатала 7/16 рукописи,а за второй день 1/2 рукописи. Закончила ли она перепечатку рукописи?(напишите решение, пожалуйста)

Answer 1

Вся рукопись = 1 (единице)
1) 7/16 + 1/2 = 7/16 + 8/16 = 15/16 рукописи машинистка напечатала за 2дня
1 = 16/16;  15/16 < 16/16
Ответ: машинистка не закончила перепечатывать рукопись.

Answer 2

Problem Analysis

The problem states that a typist transcribed 7/16 of a manuscript on the first day and 1/2 of the manuscript on the second day. We need to determine if the typist completed transcribing the entire manuscript.

Solution

To find out if the typist completed transcribing the entire manuscript, we need to calculate the total fraction of the manuscript transcribed over the two days and compare it to 1 (which represents the entire manuscript).

Let's calculate the total fraction transcribed:

On the first day, the typist transcribed 7/16 of the manuscript. On the second day, the typist transcribed 1/2 of the manuscript.

To find the total fraction transcribed, we need to add these two fractions together:

7/16 + 1/2

To add these fractions, we need to find a common denominator. The least common multiple (LCM) of 16 and 2 is 16. Therefore, we can rewrite the fractions with a common denominator of 16:

7/16 + 8/16

Now we can add the numerators:

15/16

The typist transcribed a total of 15/16 of the manuscript over the two days.

To determine if the typist completed transcribing the entire manuscript, we compare the total fraction transcribed (15/16) to 1. If the total fraction is equal to or greater than 1, then the typist completed transcribing the manuscript.

Let's compare:

15/16 >= 1

Since 15/16 is less than 1, the typist did not complete transcribing the entire manuscript.

Therefore, the typist did not finish transcribing the manuscript.

Answer

No, the typist did not finish transcribing the manuscript.