Solve the problem below, simplify, add steps

1/3 √21 minus 2/3 √3 * √7

Do you want square root? And If so then here is the answer:Rewrite √37 37 as √3√7 37. √3√7 37 Multiply √3√7 37 by √7√7 77. √3√7 √7√7 37⁢77 Simplify. And in the end of, this I put the decimals.√ 217 217 The result can be shown in both exact and decimal forms. Exact Form: √21 7 Decimal Form: 0.65465367 ... not sure this answer.