12/49=12x13/49x13=156/637
13/47=13x12/47x12=156/564
12/49=12x13/49x13=156/637
13/47=13x12/47x12=156/564
So sanh hai phan so sau bang caccach khac nhau
12 :49 va 13:47
:Quy dong tu so
1.khong quy dong hay so sanh cac phan so bang cach hop ly nhat
a,3/4 va 4/5
b,4/3 va 1999/1998
moi nguoi giup minh voi a,minh xin cam on
1.Khong quy dong,hay so sanh cac phan so bang cach hop ly nhat
a,3/4 va 4/5
b,4/3 va 1999/1998
cam on mn nhieu
A)Viet 5 phan so bé Hon 1,co Mau so la 7 va co tu so lon hon 0:
B)Viet 5 phan so lon hon 1 va co mau so la 5:
C)Viet 5 phan so bang phan so tam phan muoi hai :
D)Viet cac phan so khac 0 co tong cua tu so va mau so bang 7:
E)Hai phan so lon hon 1 co mau so bang 7 la :
G)Hai phan so bang 1 la:
H)Khoanh vao cac phan so bang ba muoi sau phan nam tu: Hai phan ba; sau phan muoi nam;tam phan muoi hai;muoi phan muoi nam
Giai ho minh bai toan nay nhe !Minh dang can bai toan nay trong ngay hom nay.
so sanh cac phan so bang hai cach khac nhau ; a} 7/8 va 8/7 b} 9/5 va 5/8 c} 12/16 va 28/21
1.Mot khu dat hinh chu nhat co chieu dai 65m.Biet rang neu tang chieu rong len 4m va giu nguyen chieu dai thi chu vi cua khu dat moi se la 147m.Tinh dien tich khu dat do
2.ko quy dong,hay so sanh cac phan so bang cach hop ly nhat
cam on mng a
1.Khong quy dong, hay so sanh cac phan so bang cach hop ly nhat
a,3/4 va 4/5
b,4/3 va 1999/1998
Khong quy dong mau so hay so sanh hai phan so 12 phan 49 va 13 phan 47
trung binh cong cua tu so va mau so cua mot phan so bang6 .phan so do bang mot so tu nhien . tim cac phan so do giai ra giup minh nhe minh can ngay bay gio trong vong 1 phut