Can som1 pls pls help me?!!

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

98 point question what is the record for most points in one