Alright Ima go teacher mode for a moment,
1.
1/3+1/5= 8/15 explanation-
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD this is basically multiplying each fraction by 1.Complete the multiplication and the equation becomes. The two fractions now have like denominators so you can add the numerators.
This fraction cant be reduced Therefore - 1/3+1/5=8/15
Alright thats the only one I will explain i'll just put the answers for the rest lol
2. 1/8+2/6= 11/24
3. 8/9+11/12= 1 29/36
4. 1/7+5/8=43/56
5. 1/4+2/4=3/4
6. 1/2+3/9=5/6
7.1/10+1/4=7/20
8.3/11+11/12= 1 25/132
9. I cant see number 9 so just tell me the bottom numbers so I can help ya out :>
10. 1/8+3/5=29/40
Hope I helped good luck on your test :> <3 Ciao mate!!!