Help me understand this - 9/4 2/5 x 5/5 45/20 x 4/4 8/20
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9/4×2/5×5/5×45/20×4/4×8/20 it means (9÷4)×(2÷5)×(5÷5)×(45÷20)×(5÷5)×(45÷20)×(4÷4)×8÷20
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