Question

ex3va rog dau Coroana

Answer 1

a) 1/ 10 si 11 / 15
10 = 2 x 5
15 = 3 x 5
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c.m.m.m.c = 2 x 3 x 5 = 30
deci cel mai mic multiplu cimun este 30
b) 5/12 si 9/20
12 = 2^2 x 3
20 = 2^2 x 5
______________
c.m.m.m.c = 2^2 x 3 x 5 = 4 x 15 = 60
cel mai mic multiplu comun este 60
c) 7/18 si 8/27
18 = 2 × 3^2
27 = 3^3
______________
c.m.m.m.c. = 2 × 3^3 = 2 × 27 = 54
d) 3/ 14 si 5/ 49
14 = 2× 7
49 = 7^2
____________
c.m.m.m.c. = 2× 7^2 = 2 × 49 = 98