Answer:
19/42
Explanation:
The first thing you need to know is that we are adding because it says "How much did they eat in all?" Then, need to write down the common denominator of both 7 an 6. That is, 42. Now you have, 2/7+1/6= ?/42. Now you need to find out what the value of the numerator. We have to multiply 2 and 6 together, we will get 12. Then we got to do the same thing with 1x7, that will be 7.
12+7=19
Remember ?/42 --- that will be now 19/42
19/42 can not be further simplified.