1 1/15 is the anwser
first we put in improper fraction 3 2/5 its 17/5 for 1 2/3 is 5/3
first find the common denominator which is 15 so like this:
3 6 9 12 15
5 10 15
the common denominator is 15 now we have to multiply the numerator by how many time we did to the bottom so now are new number are
51/15 -20/15
=31 15
now make it to a proper fraction and 1 1/15 is the anwser
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