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10 2/7 - (2 1/4 : 3 1/2)
10 2/7 - (9/4 : 7/2)
10 2/7 - (9/4 × 2/7)
10 2/7 - 9/14
72/7 - 9/14
144/14 - 9/14
135/14
9 9/14
hasilnya adalah 9 9/14
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= 9
Maka, jawabannya adalah 9 9/14 (B)