a) 1/2 si 1/4
1/2 = 2/4
b) 3/2 si 1/2 → au acelasi numitor 2
c) 3/4 si 5/6 → (3×3)/12 = 9/12 si (2×5)/12 = 10/12
9/12 < 10/12
cmmmc al numerelor ( 4,6)=2²×3=12
d) 1/ 2 ; 2/3 si 3/4
cmmmc al numerelor ( 2,3,4) =2²×3=12
6/12 < 8/12 < 9/12
e) 1/2 → o singura fractie!
f) 7/8, 5/6 si 3/4
→ cmmmc al numerelor ( 8,6,4) =2³×3=24
21/24 > 20/24 > 18/24
g) 5/25, 3/10, 14/30 si 10/20
→ cmmmc al numerelor ( 25, 10, 30, 20)=2²×3×5²= 300
(12×5)/300= 60/300
(30×3)/300=90/300
(14×10)/300=140/300
(15×10)/300=150/300
h) 5 /12 , 7/24 si 25/36
→ cmmmc al numerelor ( 12, 24, 36) = 2³×3²=72
(6×5)/72 = 30/72
(3×7)/72 = 21/72
(2×25)/72= 50/72
i) 75/135, 336/384 si 308/112
75/135 = 15/27 =5/9
336/384 = 84/96 = 21/24 = 7/8
308/112= 77/28 = 11/4
→ cmmmc al numerelor ( 9,8,4) =2³×3²=72
(8×5)/72 = 40/72
(9×7)/72 = 63/72
(18×11)/72= 198/72
