1) √ ( 5 3/9 ) = √ 48/9 = 1/3 √ 48 = 1/3 * √ ( 4 * 4 * 3) = ( 1/3 * 4) √ 3 = 4/3 √ 3
2) √ ( 1 3/9 ) = √ 12/9 = 1/3 √ 12 = 1/3 * √ ( 4 * 3) = 2/3 √ 3
3) ( 4/3 √ 3 ) -( 2/3 √ 3 ) = 2/3 √ 3
4) ( 2/3 √ 3 ) : ( √ 3/16 ) = ( √ 4/9 * 3 ) : ( √ 3/16 ) = ( √ 4/3 ) : ( √ 3/16 ) =
= √ ( 4/3 : 3/16 ) = √ 64/9 = 8/3
Ответ 8/3 ( или 2 целых 2/3 )