8/15, because you convert 1/3 into 5/15 and 1/5 into 3/15 so 5/15 + 3/15 = 8/15. This may be confusing but if you go onto this website.... you should be fine: www.mathsisfun.com/fractions_addition.html
8/15, because you convert 1/3 into 5/15 and 1/5 into 3/15 so 5/15 + 3/15 = 8/15. This may be confusing but if you go onto this website.... you should be fine: www.mathsisfun.com/fractions_addition.html