Well Your answer is 32 beacuse if lois has 5 pennies and saves 2 and joe start with 4 pennies and saves 6. well what i do first is 2 over 5 and then i do 4 over 6 and then i multiply 5 and 6 and then it 30 and that goes on the bottom and then i multiply 2×6 =12 and then i multiply 4×5=20 so i add both answer and it get me 30 that your answer
I may not help. But i believe it is something to do with the lowest common multiple between those 2 being 60