1/6 + 1/3 =
firstly both no.s on the bottom should be same. so yo multiply 3 and 2 which gives you 6. as you multiplied the bottom you also have to multiply the top one. and that gives you 2. your equation now is :
1/6 + 2/6 now add bothe fractions together that gives you 3/6
finally simplify and your answer is 1/2
