viet phan so 2/3 thanh tong cua 2 phan so toi gian khac nhau
viet phan so 7/12 thanh phan so toi gian
viet phan so 1/2 thanh tong cua hai phan so toi gian khac nhau (tim hai cach viet khac nhau
hung co 15 vien bi xanh , 8 vien bi vang va 12 vien bi do . Em hay viet phan so chi so phan cac vien bi mau xanh trong so bi hung co .[ phan so duoc viet duoi dang toi gian ] lam on giai ho minh nhe . ai giai dung minh like cho
tinh 2/2*4 + 2/4*6 + 2/6*8 + ......... 2/2014*2016 = ( viet ket qua duoi dan phan so toi gian) ket qua la 1007/2016 viet cach lam ra ho minh nhe
bieu dien phan so 4/5 thanh tong cua 2 phan so toi gian
viet cac phan so sau day thanh cac phan so co mau so la 10:
1/2 , 2/5 , 1/4 , 18/20 , 15/50 , 10/25 .
viet moi phan so sau thanh tong hai phan so toi gian co cung mau so :a 8phan15 b 11phan16
15 phut =..................gio. phan so toi gian thichp hop dien vao cho trong la
a1/4 b1/2 c3/12 d 2/3
GIUP MINH VOI MINH DANG CAN GAP