12.8除以0.54与0.26的和商是多少?
2个回答
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解:12.8除以0.54与0.26的和商是( 16 )
∵已知需求出12.8除以0.54与0.26的和商是多少
∴12.8除以0.54与0.26的和商
= 12.8 ÷ (0.54 + 0.26)
= (12×10+8)/10 ÷ ( 54/100 + 26/100)
= 128/10 ÷ (27/50 + 13/50)
= 64/5 ÷ 40/50
= 64/5 ÷ 4/5
= 64/5 × 5/4
= 16
答:12.8除以0.54与0.26的和商是16
∵已知需求出12.8除以0.54与0.26的和商是多少
∴12.8除以0.54与0.26的和商
= 12.8 ÷ (0.54 + 0.26)
= (12×10+8)/10 ÷ ( 54/100 + 26/100)
= 128/10 ÷ (27/50 + 13/50)
= 64/5 ÷ 40/50
= 64/5 ÷ 4/5
= 64/5 × 5/4
= 16
答:12.8除以0.54与0.26的和商是16
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