Question

1) 1 13/100 + 2 3/10 = 2) 2 812/1000 + 3 7/10 =

Answer 1

1) 3целых 43/100

2) 6целых 64/125

Answer 2

To add mixed numbers, you should first add the whole numbers and then add the fractions separately. Here's how you can do it:

1. $1 \frac{13}{100} + 2 \frac{3}{10}$:

First, add the whole numbers: $1 + 2 = 3$.

Next, add the fractions:

$\frac{13}{100} + \frac{3}{10}$:

To add these fractions, you need a common denominator, which in this case is 100. So, you need to make both fractions have a denominator of 100:

$\frac{13}{100} = \frac{13 \cdot 1}{100 \cdot 1} = \frac{13}{100}$

$\frac{3}{10} = \frac{3 \cdot 10}{10 \cdot 10} = \frac{30}{100}$

Now that the fractions have the same denominator, you can add them:

$\frac{13}{100} + \frac{30}{100} = \frac{13 + 30}{100} = \frac{43}{100}$

So, the final result is $3 \frac{43}{100}$.

2. $2 \frac{812}{1000} + 3 \frac{7}{10}$:

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

Next, add the fractions:

$\frac{812}{1000} + \frac{7}{10}$:

Again, you need a common denominator, which in this case is 1000. So, you need to make both fractions have a denominator of 1000:

$\frac{812}{1000} = \frac{812 \cdot 1}{1000 \cdot 1} = \frac{812}{1000}$

$\frac{7}{10} = \frac{7 \cdot 100}{10 \cdot 100} = \frac{700}{1000}$

Now that the fractions have the same denominator, you can add them:

$\frac{812}{1000} + \frac{700}{1000} = \frac{812 + 700}{1000} = \frac{1512}{1000}$

To simplify this fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 504:

$\frac{1512}{1000} = \frac{1512 ÷ 504}{1000 ÷ 504} = \frac{3}{2}$

So, the final result is $5 \frac{3}{2}$, which can also be written as $5 \frac{1}{2}$.