Resolver (30)/(40)\times(10)/(20) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\frac{ 30 }{ 40 } \times \frac{ 10 }{ 20 }$$