Step 1. Choose the lowest common denominator Find the sum of of and 10
02 03 04 05 06 08 010 012
The expression written in equivalent form
with common denominators is
The sum is
1/5 + 7/5
2/5 + 7/5
1/10 + 7/10
2/10 + 7/10

Situation: find the age of the skull to the nearest year, enter the correct answer. a hiker in africa discovers a skull that contains 32% of its original amount of c- 14. done n = noekt 00000 no = inital amount of c-14 (at time t = 0) n = amount of c-14 at time t k = 0.0001 t = time, in years