Question

I need help with number lines or models on my answers I don’t understand how to get them I need help

Answer 1

Notice that

`(15)/(6)=(12+3)/(6)=(12)/(6)+(3)/(6)=2+(3)/(6)`

Then, using a pie chart, the subtraction is

Notice that

`(10)/(6)=(6+4)/(6)=1+(4)/(6)=1+(2)/(3)`