Answer:

1)1/2

2)1 1/2

3)23/24

4)14/15

5)4/5

Step-by-step explanation:

1.) 1/12+5/12 = 6/12 = 1/2 since the denominator is similar we just add the numerator.

2.) 5/8+7/8 = 12/8 = 1 1/2 since the denominator is similar we just add the numerator.

3.) 7/12+3/8 = 23/24 since the denominator is not similar we must find the lcd of 12 and 8 and then divide the 12 to the lcd next multipy it to the numerator 7 and the answer is 14(repeat it to the other equation 3/8)

4.)8/15+2/5 = 14/15 find the lcd of 15 and 5 so the lcd is 15 we just follow the procedure like on the no. 3)