\(\dfrac{7}{4}\) \(-\) \(\dfrac{5}{8}\) = \(\dfrac{14}{8}\) \(-\) \(\dfrac{5}{8}\) = \(\dfrac{9}{8}\)
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\(\dfrac{7}{4}\) \(-\) \(\dfrac{5}{8}\) = \(\dfrac{14}{8}\) \(-\) \(\dfrac{5}{8}\) = \(\dfrac{9}{8}\)
1+1+1+1+2+2+2+3+3+3+3+4+4+4+4+5+5+5+5+6+6+6+6+7+7+7+7+8+8+8+8+9+9+9+9+10=
Tính hợp lí:
a) 5/7 + 3/8 + 5/8 + 2/7
b) 38/7 - (24/7 + 3/4)
c) 11/3 : (4/3 x 1/2)
d) (68/7 x 7/9) : 7/68
e) 13/4 : 5/6 + 11/4 : 5/6
f) 7/8 : 8/23 + 7/28 : 8/17
1+2+3+4+5+6++7+8+9+9+8+7+6+5+4+3+2+1+1+2+3+4+5++6+7+8+9=?
2 +4+9+7+5+6+7+8+8+4+6+7+4+6+4+6+6+6+8+4+7+6+7+6
3+3+4+5+6+6+7+7+8+8+7+5+7+7+5
8/9÷3/7=
8/9+2/5=
7/8-1/3=
3/10×1/6=
b.hỗn số
1 2/7+6 5/6=
5 3/4-1/5 =
6 2/9÷4 7/10=
5/3+3/2-7/6=
(4/5*3/8+4/5*5/8-4/5*7/8):1/2 = ?
4/3/:5/4:6/5:7/6:8/7:9/8
1+2+3+4+5+6+7+8+9+1+2+3+4+5+6+7+8+9+1+2+3+4+5+6+7+8+9 +1028 giúp mk nha