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標題:
中1數學!!!!!!急,幫幫手
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發問:
Write down three pairs of numbers that their L.C.M. is 60 and write down three pairs of numbers that their H.C.F. is 60.
最佳解答:
Write down three pairs of numbers that their L.C.M. is 60 1. 5,12 2. 4,15 3. 3,20 write down three pairs of numbers that their H.C.F. is 60 1. 60,120 2. 120,180 3. 180,240 小小技巧: L.C.M 就係兩個數乘埋係60, 但係兩個數又唔可以比30除得盡 而H.C.F.就兩個60既倍數, 但係兩個數之中, 大果個除細果個唔可以出到整數 希望幫到你 :)
其他解答:
LCM=60 1,60 20,30 10,6 HCF=60 60 120 120 180 180 240 2011-08-24 18:12:24 補充: 丫 10同6唔係 10同60啦咁
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