2/5=12/30=40/100; 4/7=20/35=12/21. k mik nha ☺
2/5 = 12/30 và 40/100
4/7 = 21/12 và 20/35
Mình chắc chắn 100% đó.Các bạn nhớ k cho mình nha !
viet moi phan so sau thanh tong cac phan so co tu so bang 1 va mau so khac nhau
5/6 7/12 8/15 17/24
giai tri tiet bai toan
viet cac phan so thap phan sau day thanh so thap phan co 5 chu so
a)12/25 b)7/5 c)13/4
tim cac phan so co tu so be hon 30 va: bang phan so 5/3 va bang phan so 4/7 dang cAN GAP
tim cac phan so bang nhautrong cac phan so day :2:5 ; 4:7; 6:15; 8:14; 16:28; 24:60;
Viet moi phan so sau thanh tong cac phan so co tu so bang 1 va mau so khac nhau :5/6 ;7/12 ;8/15 ;17/24 giup toi giai toan that nhanh
viet cac phan so lan luot bang 7 phan 9 va 5 phan 12 va co mau so chung la 36
dua cac phan so ve cung mau so roi sap xep theo thu tu tu be den lon 2 phan 7 6 phan 14 30 phan 35 3 phan 21 2 phan 5 9 phan 45 8 phan 10 12 phan 20
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
ban an phai tim tat ca cac so co 3 chu so lon hon 500 ma tong cac chu so cua moi so do deu bang 12 dong thoi chu so hang don vi bang trung binh cong cua chu so hang tram va hyang chuc hoi ban an tim duoc nhieu nhat bao nhieu so thoa man yeu cau
