Make bottom number de same
1/4 times 6/6=6/24
1/6 times 4/4=4/24
now we gots
1/4+1/6=
6/24+4/24=
(6+4)/24=
10/24=
5/12
Step-by-step explanation:

Three hundred and nine million, ninetynine thousand, and nine hundred ninety
Answer:
The slope should be m= 4/7
Step-by-step explanation:
i hope this helps a little <3 have a awesome day