Question

4 2/5+(-7 1/3)-3 4/5​

Answer 1

Ответ:

Пошаговое объяснение:

-6 6-5-12/15=-6 11/15

Answer 2

To add and subtract mixed numbers, you'll want to follow these steps:

Step 1: Convert the mixed numbers to improper fractions. Step 2: Perform the addition and subtraction operations with the improper fractions. Step 3: If needed, convert the result back to a mixed number.

Let's go through the calculation:

1. Convert the mixed numbers to improper fractions:

4 2/5 = (5 * 4 + 2) / 5 = (20 + 2) / 5 = 22/5 -7 1/3 = (3 * -7 + 1) / 3 = (-21 + 1) / 3 = -20/3 3 4/5 = (5 * 3 + 4) / 5 = (15 + 4) / 5 = 19/5

Now, we have:

22/5 + (-20/3) - 19/5

2. Perform the addition and subtraction:

22/5 - 19/5 = (22 - 19) / 5 = 3/5

Now, we have:

3/5 + (-20/3)

To add these fractions, find a common denominator, which is 15:

(3/5) + (-20/3) = (3/5) + (-20/3) * (5/5) = (3/5) - (100/15)

Now, subtract the fractions:

(3/5) - (100/15) = (3/5) - (20/3)

3. Convert the result back to a mixed number (if needed):

To convert the result back to a mixed number, divide the numerator (3) by the denominator (5):

3 ÷ 5 = 0 with a remainder of 3

So, the result is 0 whole, with a fraction of 3/5.

Putting it all together:

4 2/5 + (-7 1/3) - 3 4/5 = 0 3/5