Question

3/4+5/6= 7/15-5/12= (5/6-1/3)+(1/2+9/10)=

Answer 1

Ответ:

1)7/12

2)1/20

3)1 8/10

вроде верно

Answer 2

Ответ:

1) 1 7/12(одна целая семь двенадцатых

2)53/60

3)

1) 1/2 * первое действие

2) 1 2/5

Ответ: 1 9/10

Answer 3

Let's break down each of these calculations step by step:

1. 3/4 + 5/6:

To add these fractions, you need to find a common denominator. The common denominator in this case is 12.

(3/4) * (3/3) = 9/12 (5/6) * (2/2) = 10/12

Now, you can add them:

9/12 + 10/12 = (9 + 10) / 12 = 19/12

So, 3/4 + 5/6 = 19/12.

2. 7/15 - 5/12:

To subtract these fractions, you also need a common denominator, which is 60 in this case.

(7/15) * (4/4) = 28/60 (5/12) * (5/5) = 25/60

Now, you can subtract them:

28/60 - 25/60 = (28 - 25) / 60 = 3/60

To simplify the fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 3:

(3/3) / (60/3) = 1/20

So, 7/15 - 5/12 = 1/20.

3. (5/6 - 1/3) + (1/2 + 9/10):

First, let's simplify each part of the expression separately:

• 5/6 - 1/3:

To subtract these fractions, you need a common denominator, which is 6 in this case.

(5/6) - (2/6) = (5 - 2) / 6 = 3/6

You can simplify 3/6 by dividing both the numerator and denominator by their greatest common divisor, which is 3:

(3/3) / (6/3) = 1/2

• 1/2 + 9/10:

To add these fractions, you need a common denominator, which is 10 in this case.

(1/2) * (5/5) = 5/10 (9/10) * (1/1) = 9/10

Now, you can add them:

5/10 + 9/10 = (5 + 9) / 10 = 14/10

You can simplify 14/10 by dividing both the numerator and denominator by their greatest common divisor, which is 2:

(14/2) / (10/2) = 7/5

Now, you can add the simplified fractions together:

(1/2) + (7/5)

To add these fractions, you need a common denominator, which is 10 in this case.

(1/2) * (5/5) = 5/10 (7/5) * (2/2) = 14/10

Now, you can add them:

5/10 + 14/10 = (5 + 14) / 10 = 19/10

So, (5/6 - 1/3) + (1/2 + 9/10) = 19/10.