हल करना What should be added to 7/12 to get -4 15 ? | 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

$$\frac { 7 } { 12 } \frac { - 4 } { 15 } ?$$