a, 2013/2018 < 2012/2018
b, 2013/2008 < 2008/2003
c,24/47 > 13/27
d,37/23 < 42/22
e 1/2 > 1/2017
g, 12/13 > 6/7
a, 2013/2018 < 2012/2018
b, 2013/2008 < 2008/2003
c,24/47 > 13/27
d,37/23 < 42/22
e 1/2 > 1/2017
g, 12/13 > 6/7
so sanh phan so
2013 / 2008 / va 2008 / 2003
1) Cho 2 so khac nhau . So lon co chu so hang chuc la 7 , chu so hang don vi la 3 . Neu xoa chu so 7 va chu so 3 do ta duoc so be . Hieu cua 2 so do la 9082 . Tim 2 so do ?
2)So sanh A va B :
A = 2008/987654321 + 2009 / 246813579 . Day la phan so
B = 2009/987654321 + 2008 / 246813579 . Day la phan so
so sanh 2 phan so sau
a 3 phan 5 va 4 phan 5
b 12 phan 13 va 13 phan 13
Khong can quy dongmau so,hay so sanh cac phan so sau:
17/15 va 29/30
12/48 va 13/47
15/22 va 60/91
khong thuc hien phep tinh hay so sanh hai tich sau
2008 va 2002;2006 va 2004
Khong quy dong mau so hay so sanh hai phan so 12 phan 49 va 13 phan 47
tinh nhanh
a) 1/6 + 1/12 + 1/20 + ............ + 1/110
b) 2008/2009 va 2007/2008
quy dong mau so ;a3phan 4 va 5 phan 12 ;b 5phan 6 va 7phan 8 c 8 phan 23 va 47 phan 69
So sanh cac phan so duoi day:
a,12/13 va 11/14
b,19/20 va 39/28
c,15/25 va 5/7
d,15/7 va 9/14
e, 899/900 va 1235/1236
Giai ho Diep nhe,cang nhanh cang tot,cam on truoc nha!