Find the reciprocal of whole number 3:
The reciprocal of whole number 3 is 1/3.
Multiplying 3/10 with reciprocal of 3 (3/10 times 1/3) produces the equivalent fraction for 3/10 divided by 3:
= 3/10 x 1/3
= (3 x 1)/(10 x 3)
= 1 x 1/10
= 1/10
3/10 ÷ 3 = 1/10
ANSWER: 1/10