8/5•(3/5+11/8)=1,6•(0,6+1,375)=3,16
X×3/5=4/15 x=4/3
x÷2/7=7/12 x=1/6
<span>2/3×x=4/7 x=6/7</span>
7/9÷x=7/18 x=1/2
x÷1/2=1/2 x=1/4
<span>12/25÷x=3/5 x=4/5</span>
90/3=30 (см)-сторона квадрата
30*30=900 (квадратных метра)-площадь участка
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102.103.104.105.
123.124.125.
120.130.140.150
201.203.204.205
210.230.240.250.
301.302.304.305
310.320.340.350
401.402.403.405.
410.420.430.450.
501.502.503.504
510.520.530.540.
213.214.215.231.234.235.241.243.245.
312.314.315.321.324.325.345
412.413.415.421.423.425.431.432.435.
512.513.514.521.523.524.531.532.534.541.542.543.
Хватит)))