17/25*1128+34/50*17/28=187/700+289/700=17/25
17/25 x 11/28 + 34/50 x 17/28 = 17/25
k mk nha mk k lai
9/25 viet duoi dang phan so toi ian la
17/25 x 11/28 + 34/50 x 17/28
17/25 x 11/28 + 34/50 x 17/28 = ?
thuc hien tinh 1x2x3x4x5
--------------- roi viet ket qua duoi dang phan so toi gian
3x4x5x6x7
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
so 2012 duoc viet duoi dang phan so nao
viet cac so tu nhien 5 ; 10 ; 117 ; 2015 ; 2016 duoi dang phan so co mau so bang 1
66/8*17/25+3/4*28/50+9/4:25/23
