= 1/2 + 9/2 + 2/4 + 8/4
= 10/2 + 10/4
= 60/8
( 1/2 + 9/2 ) + ( 2/4 + 8/4 )
= 10/2 + 10/4 = 30/4 = 15/2
tinh bang cach thuan tien nhat
1+2+3+4+5+6+7+8+9:9 =
Tinh bang cach thuan tien nhat
3/2 + 4/9 + 4/7 + 5/9
bai 4: tinh bang cach thuan tien nhat: a, 5/9*5/2+4/9*5/2 , b, 12*3/4-3/4*12/7 lam kieu gi
giup minh voi
tinh bang cach thuan tien:
3/5+4/7+2/5+1/7+2/7=
tinh bang cach thuan tien nhat a.3/5+4/7+2/5+1/7+2/7 b.1/3+1/6+4/3+2/6+2/3
tinh bang cach thuan tien nhat
a(6/11 + 5/11)*3/7
b.3/5 * 7/9 +3/5*2/9
c.(6/7 - 4/7) : 2/5
d.(8/15 : 2/11 + 7/15 : 2/11
tinh bang cach thuan tien nhat
1/2+1/6+1/12+1/20
1/2+1/6+1/12+1/20+.........+19900
1/2+1/3+1/4+1/8+1/16
1/2+1/3+1/4+1/8+1/16+.......+1/512
Tinh bang cach thuan tien:
c)1/9+2/5+1/3+3/10
tinh bang cach thuan tien nhat 15/5*2/3*2/4=
