=(0.7)^(2/3)*0.7^(1/2)=0.7^(2/3+1/2)= 0.7^(7/6)=0.7*(^6√0.7)
(0.7*корень 6 степени из 0.7)
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15 3/28 - (4 11/28+у) = 5 19/284 11/28 + у = 15 3/28 - 5 19/28 = 10 + (3/28 - 19/28) = 9 + (28/28 + 3/28 - 19/28) = 9 + 12/28 = 9 12/28у = 9 12/28 - 4 11/28 = 5 1/28