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Masala №44

Proporsiya

O'rta10 ballArifmetik amallar
Proporsiyadan XX ni toping:
X10,5⋅0,24−15,15:7,5=9(11120−0,945:0,9)1340−438:7\dfrac{X}{10,5\cdot 0,24-15,15:7,5}=\dfrac{9\left(1\frac{11}{20}-0,945:0,9\right)}{1\frac{3}{40}-4\frac{3}{8}:7}

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