Can some please help me with this math

1.Subtract: 7/8 - 5/6

2.Add: 5 1/3 + 3 2/5

3. Add 7 11/12 + 3 5/16

4.Subtract: 6 2/5 - 4 7/10

5. Subtract: 9 - 3 4/7

6. Add: 2/9 + 1/6

7.Add: 5/16 + 5/12

1) 7/8 - 5/6 = 21/24 - 20/24 = 1/24

2) 5 1/3 + 3 2/5 = 5+3 ( 1/3 +2/5) = 8 11/15

3) 7 11/12 + 3 5/16

7 + 3 ( 11/12 + 5/16) = 10 59/48 = 10 + 1 11/48= 11 11/48

4) 6 2/5 - 4 7/10= 6 -4 ( 2/5 - 7/10)

2 ( 4/10 - 7/10) = - 2 3/10

5) 9 - 3 4/7

9 - 25/7 = 63/7 - 25/7 = 38/7 = 5 3/7

6) 2/9 +1/6 = 4/18 + 3/18 = 7/18

7) 5/16 + 5/12 = 15/48 + 20/48 = 35/48

Find a common denominator between them. (That's the bottom half of it.) Then subtract the top halves from each other and keep the denominator as is. Oh! And for example with :7/8 - 5/6....the common denominator is 24. To get to 24 by 8 you have to multiply by three. So, you also have to multiply the 7 by 3. It now reads 21/24 - 20/24= 1/24.

Hope that helped?

1- 1/24; #2- 8 11/15; #3- 8 11/48; #4- 1 7/10; #5- 5 3/7; #6-7/18;#7- 35/48