Question

2 3/4 + 3 2/5 = ? 3 4/9 - 2 1/6 = ?

Answer 1

Ответ:

2 3/4 + 3 2/5 = 6 3/20

Альтернативная форма:123/20,6,15

3 4/9 - 2 1/6 =1 5/18

Альтернативная форма:23/18,1,27

Пошаговое объяснение:

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Answer 2

Let's solve these arithmetic problems step by step:

1. Addition: 2 3/4 + 3 2/5

First, add the whole numbers together: 2 + 3 = 5.

Next, add the fractions. To do this, find a common denominator. The common denominator for 4 and 5 is 20.

Now, convert both fractions to have a denominator of 20:

• For 3/4, multiply both the numerator and denominator by 5 to get 15/20.
• For 2/5, multiply both the numerator and denominator by 4 to get 8/20.

Now, add the fractions: 15/20 + 8/20 = 23/20.

So, the result is 5 23/20.

Now, let's move on to the subtraction:

2. Subtraction: 3 4/9 - 2 1/6

First, subtract the whole numbers: 3 - 2 = 1.

Next, subtract the fractions. To do this, find a common denominator. The common denominator for 9 and 6 is 18.

Now, convert both fractions to have a denominator of 18:

• For 4/9, multiply both the numerator and denominator by 2 to get 8/18.
• For 1/6, multiply both the numerator and denominator by 3 to get 3/18.

Now, subtract the fractions: 8/18 - 3/18 = 5/18.

So, the result is 1 5/18.

To summarize:

• 2 3/4 + 3 2/5 = 5 23/20
• 3 4/9 - 2 1/6 = 1 5/18