Вычислите квадрат числа 1/4 3/8 5/6 2/7 1 1/2 4 1/9 6 2/3

Решите задачу:

$( \frac{1}{4} )^{2} = \frac{1}{16} ; ( \frac{3}{8}) ^{2} = \frac{9}{64}; ( \frac{5}{6}) ^{2} = \frac{25}{36}; (\frac{2}{7} )^{2} = \frac{4}{49};$

$(1\frac{1}{2} )^{2} = (\frac{3}{2} )^{2} =\frac{9}{4}=2\frac{1}{4};(4\frac{1}{9} )^{2} = (\frac{37}{4} )^{2} =\frac{1369}{16}=85\frac{9}{16};$
$(6\frac{2}{3} )^{2} = (\frac{20}{3} )^{2} =\frac{400}{9}=44\frac{4}{9}$