Answer:
0.667
Step-by-step explanation:
2/3
Rounded to 3 significant figures
Rounding up to a significant figure means, you limit the number to have only 3 significant digit only, which means 0 would not be counted, because it is insignificant.
In rounding up numbers, number 1 to 4 is rounded up to 0, while numbers 5 to 9 are rounded up to 1. Starting exactly after the figure of concern.
2/3 equals 0.666666666666recurring
Rounded up to 3 significant figures, let's have four significant figures first
0.6666
The fourth significant figure is 6, rounding it up gives 1. Then 1 will be added to the third significant figure
0.667
