Answer:
2:9
Explanation:
The ratio 16g:72g can be simplified by dividing both the numerator and denominator by the greatest common factor, which is 8.
So,
16g ÷ 8 = 2g
72g ÷ 8 = 9g
The simplified ratio is 2g:9g.
And, by dividing both terms of the ratio by the same factor, the ratio can also be written as 2/9.