Jenny’s lawn is start fraction 1 over 3 end fraction of an acre. After mowing one-half of the lawn, how much of an acre has she mowed?
A. start fraction 1 over 5 end fraction
B. start fraction 1 over 6 end fraction
C. one-half
D. two-fifths
Jenny has mowed one-half of start fraction 1 over 3 end fraction of an acre.
So, the fraction of the lawn she has mowed is:
start fraction 1 over 2 end fraction × start fraction 1 over 3 end fraction
= start fraction 1 over 6 end fraction
Therefore, Jenny has mowed start fraction 1 over 6 end fraction of an acre.
The answer is option B, start fraction 1 over 6 end fraction.