1.

Simplify : `0.9+0.9xx0.9÷0.9-0.9+0.9÷0.9xx0.9`

Answer» Correct Answer - 1.8
`0.9+0.9xx0.9div0.9-0.9+0.9div0.9xx0.9`
`= 9/10+9/10xx9/10 div 9/10 - 9/10 + 9/10 div 9/10 xx 9/10`
`= 9/10 + 9/10 xx 1 - 9/10 +1 xx 9/10`
`= 9/10 + 9/10 - 9/10 + 9/10`
`= 18/10 = 1.8`


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