X = my answer

please help me and ty!
1-5 find the sum
3 4/9+ 5 1/3 =
O 13 2/10
O 13 2/7
X 13 1/5
O 13 7/10
------------------
11 1/5 + 2 1/2=
X 13 2/10
O 13 2/7
O 13 1/5
O 13 7/10
------------------------
7 4/5 + 1 9/10=
O 8 2/5
X 9 2/5
O 9 7/10
O 8 7/10
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Alberto has 2 cats. the smaller cat weighs 10 3/4 pounds. The larger cat weighs 15 1/3 pounds. How much do both cats weigh altogether?
O 26 1/2
X 26 11/12
O 25 4/7
O 25 7/12
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Sam rode his bide 7 1/2 miles on monday, 4 miles on tuesday, and 6 1/3 miles on wensday. how many miles did he ride altogether?
O 17 2/5
O 17 3/5
O 17 1/6
X 17 5/6

8 answers

always use a common denominator. For example,
11 1/5 + 2 1/2 = 11 2/10 + 2 5/10 = 13 7/10
I don't really understand :(
google "adding fractions" for many examples and even videos on how it all works
okie!
I just realized that the answers for 1 are wrong XD
The answers are:
X 8 7/9
O 8 5/12
O 7 7/12
O 8 5/9
so the answers are
1. 8 7/9
2. 13 7/10
3. 9 7/10
4. 26 1/12
5. 13 5/6?
please answer as soon as possible :(
also for 5 there is only
17 2/5
17 3/5
17 1/6
and 17 5/6
I'm going with 17 5/6
they are all correct woo!!