JAMB - Mathematics (1986 - No. 3)
Divide the L.C.M of 48, 64, and 80 by their H.C.F
20
30
48
60
คำอธิบาย
48 = 24 x 3, 64 = 26, 80 = 24 x 5
L.C.M = 26 x 3 x 5
H.C.F = 24
\(\frac{2^6 \times 3 \times 5}{2^4}\)
= 22 x 3 x 5
= 4 x 3 x 5
= 12 x 5
= 60
L.C.M = 26 x 3 x 5
H.C.F = 24
\(\frac{2^6 \times 3 \times 5}{2^4}\)
= 22 x 3 x 5
= 4 x 3 x 5
= 12 x 5
= 60