Planet X is 8 light-years away from Earth. Planet Y is 7/12 of a light-year away from Earth. How much farther away is Planet X?
Write your answer as a fraction or as a whole or mixed number.
light-years
Planet X is 8 light-years away from Earth and Planet Y is 7/12 of a light-year away from Earth. To determine how much farther away Planet X is, we subtract the distance of Planet Y from the distance of Planet X.
8 - 7/12 = 96/12 - 7/12 = (96 - 7)/12 = 89/12.
So, Planet X is 89/12 light-years farther away from Earth.