Menyelesaikan 15/20 + 42/30 - 56/40 | 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

$$\frac{15}{20}+\frac{42}{30}-\frac{56}{40}$$