Answer:
Step-by-step explanation:
To add efficiently, you would need to have a common denominator. in this case the least common denominator (LCD) would be 35. 1/7 = 5/35 and 2/5 = 14/35
add the numerators together to get your answer:
19/35
make the denominator 35
so 1/7 times 5/5= 5/35
2/5 times 7/7= 14/35
14/35 plus 5/35= 19/35
