90/100 : 1/2 × 2/3
= 9/10 × 2/1 × 2/3
= 18/10 × 2/3
= 36/30
= 12/10
= 1,2
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Q.
90/100 : 1/2 × 2/3
= 9/10 × 2/1 × 2/3
= 18/10 × 2/3
= 36/30
= 12/10
= 1,2
Jawab :