( 10 1 + 5 2 ) 10 9 = 2 1 10 9 = 10 9 . 1 2 = 1 0 ÷ 2 1 8 ÷ 2 → 5 9
1.8 is the answer
1/10+2/5 is equal to 0.5
That divided by 9/10 is 1.8 or 1 8/10
To simplify 10 9 ÷ ( 10 1 + 5 2 ) , we first simplify the denominator to 2 1 . Then, rewriting the division as multiplication by the reciprocal leads to 10 9 × 2 = 10 18 , which simplifies to 5 9 .
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