So how do u add fractions?

magic

Step-by-step explanation:

Make sure the bottom number are the same

Add the top numbers,put that answer over the denominator

Simplify the fractions if needed

Cross-multiply the two fractions and add the results together to get the numerator of the answer.

Suppose you want to add the fractions 1/3 and 2/5. To get the numerator of the answer, cross-multiply. In other words, multiply the numerator of each fraction by the denominator of the other:

1/3 and 2/5

5+1=6     3+2=5

Add the results to get the numerator (top) of the

5 + 6 = 11

Multiply the two denominators together to get the denominator of the answer.

To get the denominator (bottom), just multiply the denominators of the two fractions:

1/3 and 2/5

3x5 = 15

The denominator of the answer is 15.

So the final answer is 11/15

HOPE THIS HELPS!

other answer is correct. i had used the radius of the radius somehow. a website:

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step-by-step explanation: