Question

4 3/8+ 3 7/8- 1 3/7​

Answer 1

Відповідь:

6 23/28

Покрокове пояснення:

Answer 2

To add and subtract mixed numbers, you can follow these steps:

Step 1: Add or subtract the whole numbers. Step 2: Add or subtract the fractions separately. Step 3: Combine the results from Step 1 and Step 2 to get the final mixed number.

Let's calculate it step by step:

Step 1: Add or subtract the whole numbers: 4 + 3 - 1 = 6

Step 2: Add or subtract the fractions: 3/8 + 7/8 - 3/7

To add or subtract fractions with different denominators, you need to find a common denominator. In this case, the least common denominator (LCD) for 8 and 7 is 56. So, we'll convert the fractions to have a denominator of 56:

(3/8) * (7/7) = 21/56 (7/8) * (7/7) = 49/56 (3/7) * (8/8) = 24/56

Now, subtract the fractions: 21/56 + 49/56 - 24/56 = (21 + 49 - 24) / 56 = 46/56

Step 3: Combine the results: 6 (whole number) + 46/56 (fraction)

Now, simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 2: 46 ÷ 2 / 56 ÷ 2 = 23/28

So, the final result is: 6 23/28