Answer:
see below
Step-by-step explanation:
An irrational number is a real number that cannot be written as a simple fraction. (Irrational means not rational).
0.2476931 + 12.4139 = 12.6615931 irrational
1/√3 x √3/√10 = √3 / √30 = √10 / 10 irrational
243/3 - 16/6 = 486/6 - 16/6 = 470/6 = 235/3 rational
∛21 x 3 = 8.276772529 irrational
(√9 + √6) - (4 - √6) = 3 +2√6 - 4 = -1 + 2√6 = irrational
