Question
$(213 × 657)^{-1}= 213^{-1}× \_\_\_\_\_.$
✓
Answer
$(213 × 657)^{-1}= 213^{-1}×$ $\frac{1}{657}$
Solution:
Suppose, $(213 × 657)^{-1}= 213^{-1}× x$ $\Rightarrow\frac{1}{213\times657}=\frac{1}{213}\times\text{x}$ $\Rightarrow\text{x}=\frac{213}{213\times657}$ $\Rightarrow\text{x}=\frac{1}{657}$
Solution:
Suppose, $(213 × 657)^{-1}= 213^{-1}× x$ $\Rightarrow\frac{1}{213\times657}=\frac{1}{213}\times\text{x}$ $\Rightarrow\text{x}=\frac{213}{213\times657}$ $\Rightarrow\text{x}=\frac{1}{657}$
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