3 7/10 + 2 9/10

I did the last problem for you. Now it's your turn.

Please post your answer, and I'll be glad to check it.

6 2/5

Right! :-)

To add mixed numbers, you need to first convert the mixed numbers into improper fractions, then add the fractions together. Here's how you can do it step by step:

Step 1: Convert the mixed numbers into improper fractions.
To convert the mixed numbers 3 7/10 and 2 9/10 into improper fractions, multiply the whole number by the denominator and add the numerator. Write the sum above the denominator.

For 3 7/10:
3 x 10 + 7 = 37
The improper fraction for 3 7/10 is 37/10.

For 2 9/10:
2 x 10 + 9 = 29
The improper fraction for 2 9/10 is 29/10.

Step 2: Add the fractions together.
Now that both numbers are in the form of improper fractions, add the numerators together while keeping the denominators the same. The sum will be the numerator of the result.

37/10 + 29/10 = (37 + 29)/10 = 66/10

Step 3: Simplify, if necessary.
In this case, the fraction 66/10 can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 2.

66/2 = 33
10/2 = 5

So, the simplified fraction is 33/5.

Therefore, 3 7/10 + 2 9/10 = 33/5.