Final answer:
No, Hamish is not correct. The correct calculation of 2/5 multiplied by 3 is 6/5, not 6/15.
Step-by-step explanation:
Is Hamish correct in stating that 2/5 * 3 = 6/15? The answer is No. When multiplying a fraction by a whole number, you multiply the numerator of the fraction by the whole number while keeping the denominator the same. In this case, 2/5 * 3 should be calculated as (2 * 3) / 5, which equals 6/5.