To add and subtract fractions, we need to find a common denominator. In this case, the common denominator for 15, 5, and 3 is 15.
3/15 + 6/15 - 3/15 = 6/15 + 6/15 - 3/15= 12/15 - 3/15= 9/15= 3/5
Therefore, 3 2/15 + 1 2/5 - 2 1/5 = 3/5
To add and subtract fractions, we need to find a common denominator. In this case, the common denominator for 15, 5, and 3 is 15.
3/15 + 6/15 - 3/15 = 6/15 + 6/15 - 3/15
= 12/15 - 3/15
= 9/15
= 3/5
Therefore, 3 2/15 + 1 2/5 - 2 1/5 = 3/5