a: \(=\dfrac{15}{2}-\dfrac{14}{5}=\dfrac{75-28}{10}=\dfrac{47}{10}\)

b: \(=\dfrac{39}{6}-\dfrac{9}{4}=\dfrac{78-27}{12}=\dfrac{45}{12}=\dfrac{15}{4}\)

c: \(=\dfrac{38}{5}-\dfrac{19}{4}=\dfrac{57}{20}\)

d: \(=1\cdot\dfrac{95}{9}=\dfrac{95}{9}\)

e: \(=\dfrac{3}{5}\cdot\dfrac{25}{9}=\dfrac{5}{3}\)

=0 nha bạn

= 0 nhé !

Bằng 126 phải ko

1398500

thanks

rảnh tay

wá ha

ai k mình mình k lại

5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+6+5+7+5+8+9+0+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+9+8+9+8+9+9+9+9+9+9+9+9+9+9+9+100+9000+1000=5x16+6x1+7x1+8x2+9x41+10100=10578

=17x5+6+7+8x3+0+42x9+100+9000+1000=10600

793476480

2.9241805e+26

lấy số nào cộng lại ra 10 rồi nhân

3 + 4 = 7     6 - 5 = 1     0 + 8 = 8

5 + 5 = 10     9 - 6 = 3     9 - 7 = 2

8 + 1 = 9     5 + 4 = 9     5 - 0 = 5

9 x 5 = 45

63 : 7 = 9

8 x 8 = 64

5 x 7 = 35

8 x 7 =56

3 x 8 = 24

40 : 5 = 8

5 x 5 = 25

7 x 5 = 35

7 x 8 =56

6 x 4 = 24

45 : 9 = 5

7 x 7 = 49

35 : 5 = 7

56 : 8 = 7

2 x 8 = 16

81 : 9 = 9

9 x 9 = 81

35 : 7 = 5

56 : 7 = 8

ay bạn ơi dễ vậy mà