we know that the <span>commutative property of multiplication</span><span> states that when finding a product, changing the order of the factors will not change their product. ...(a X b = b X a) eg: 3/4 X 5/6 X 2/5 so according to the </span>commutative property of multiplication<span> ...we can rearrange these three numbers in any way we want for easy calculations ..like .. 2/5 X 3/4 X 5/6 = 30/120 = 1/4 ... i feel it would be easy to multiply small numbers first so i arrange it in that way ..so it makes the problem easy ...anyways commutative property is there which allows us to rearrange the numbers in any way we want ...