求 48和64的L.C.M和H.CF.之差。
A.16
B.176
C.192
D.208
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2007-04-04 11:54 pm
回答 (3)
2007-04-05 12:02 am
✔ 最佳答案
2│48 642│24 32
2│12 16
2│ 6 8
3 4
48和64的L.C.M = 2 x 2 x 2 x 2 x 3 x 4
= 192
48和64的H.C.F = 2 x 2 x 2 x 2
= 16
so 48和64的L.C.M和H.CF.之差 = 192 - 16
= 176
答案係B
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2007-04-05 12:01 am
B.176
2007-04-05 12:00 am
B.176
48=2x2x2x2x3
64=2x2x2x2x2x2
48 & 64 L.C.M. = 2x2x2x2x2x2x3 = 192
48 & 64 H.C.F. = 2x2x2x2 = 16
192-16 = 176
48=2x2x2x2x3
64=2x2x2x2x2x2
48 & 64 L.C.M. = 2x2x2x2x2x2x3 = 192
48 & 64 H.C.F. = 2x2x2x2 = 16
192-16 = 176
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