Resolver 4/5 + 3/10 + 3/20 | 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

$$\frac{4}{5}+\frac{3}{10}+\frac{3}{20}$$