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求最小公倍数①36和54②64和82③18和54④32和48⑤45和65⑥75和125quietly~thanks
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求最小公倍数
①36和54 ②64和82 ③18和54 ④32和48 ⑤45和65 ⑥75和125
quietly~thanks
①36和54 ②64和82 ③18和54 ④32和48 ⑤45和65 ⑥75和125
quietly~thanks
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答案和解析
①36和54 :36=2x2x3x3,54=2x3x3x3,最小公倍数=2x2x3x3x3=108
②64和82:64=2x2x2x2x2x2,82=2x41,最小公倍数=2x2x2x2x2x2x41=2624
③18和54:18=2x3x3,54=2x3x3x3,最小公倍数=2x3x3x3=54
④32和48:32=2x2x2x2x2,48=2x2x2x2x3,最小公倍数=2x2x2x2x2x3=96
⑤45和65:45=3x3x5,65=5x13,最小公倍数=3x3x5x13=585
⑥75和125:75=3x5x5,125=5x5x5,最小公倍数=3x5x5x5=375
②64和82:64=2x2x2x2x2x2,82=2x41,最小公倍数=2x2x2x2x2x2x41=2624
③18和54:18=2x3x3,54=2x3x3x3,最小公倍数=2x3x3x3=54
④32和48:32=2x2x2x2x2,48=2x2x2x2x3,最小公倍数=2x2x2x2x2x3=96
⑤45和65:45=3x3x5,65=5x13,最小公倍数=3x3x5x13=585
⑥75和125:75=3x5x5,125=5x5x5,最小公倍数=3x5x5x5=375
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