cách 1: 9/5:17/15 + 8/5:17/15=27/17+24/17=3
cách 2 :9/5:17/15+8/5:17/15=17/15 x15/17+8/5 x15/17=15/17 x (9/5+8/5)=15/17 x 17/5 = 3
cách 1: 9/5:17/15 + 8/5:17/15=27/17+24/17=3
cách 2 :9/5:17/15+8/5:17/15=17/15 x15/17+8/5 x15/17=15/17 x (9/5+8/5)=15/17 x 17/5 = 3
tinh bang 2 cach
a) 9/15 chia 17/15 +8/15 chia 17/15
cach 1:?
cach 2:?
b) 0.9 chia 0.25 +1.05 chia 0.25
cach 1:?
cach 2:?
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tính bằng hai cách
9/5:17/15+8/5:17/15.....
0.9:0.25+1.05:0.25........
tính bằng hai cách
a) 9/5 chia 17/5 +8/5 chia 17/15=
b) 0.9 chia 0.25 + 1.05 chia 0.25 =
Tính bằng 2 cách :
a) 9/5 : 17/15 + 8/5 : 17/15
b)0.9 : 0.25 + 1.05 : 0.25
Làm giúp mình nhé
tính bằng 2 cách
9/5:17/15+8/5:17/15
0.9:0.25+1.05:0.25
tính bằng hai cách
9/7 : 17/14 + 8/7 : 17/14 (0,9 + 1.05 ) : 0.25
Tinh bang cach thuan tien 9/5:17/15+8/5:17/15 bang bao nhieu
9/8:27/16=?
tinh bang 2 cach
9/5:17/15+8/5:17/15
3 Tinh bang hai cach : .
9/5 : 17/15 + 8/5 : 17/15
C1 : = ...
= ...
9/5 : 17/15 + 8/5 : 17/15
C2 : = ...
= ...
Cac bạn ơi giúp voi.