tong cua tu so va mau so cua mot phan so la 4812 sau khi rut gon phan so do ta duoc phan so 5/7 hay tim phan so chua rut gon
Mot phan so co tong cua tu va mau la 190. Sau khi rut gon thi diocese 5/33. Hay tim phan so do
mau cua mot phan so lon hon tu 14 don vi sau khi rut gon ta duoc phan so 993/1000.hay tim phan so ban dau
Tim cac phan so theo thu tu tu cac phan sô 6/10 ,44/66,30/55 sao cho mau cua phan so thu nhat bang tu cua phan so thu hai ,mau phan so thu hai bang tu cua phan so thu ba
1a, cho tap hop A={x la so tu nhien/x=7k+3; k la so tu nhien ;x < hoac = 150}
- hay liet ke cac phan tu cua A tu nho den lon
-tinh tong cac phan tu cua A
b, tim thuong cua mot phep chia biet rang neu them 15 vao so bi chia va them 5 vao so chia thi thuong va so du khong thay doi
c, tim 1so co 2 chu so sao cho
[(a.10+b):b=3b
tim so tu nhien n de phan so B=10n-3 phan 4n-10 dat gia tri lon nhat tim gia tri lon nhat do
Cho tap hop A = { Toan Van Anh } va tap hop B = { Ly Su Dia Sinh } Viet cac tap gom co 2 phan tu mot phan tu cua tap hop A mot phan tu cua tap hop B So tap hop duoc viet la
Nhanh se dc 1 like cua minh nhe
tim phan so bang phan so -95/60 biet rang tong cua tu so va mau so la -14
Tim so tu nhien co ba chu so, biet rang binh phuong cua chu so hang chuc bang tich cua hai chu so kia va so tu nhien do tru di so gom ba chu so ay viet theo thu tu nguoc lai bang 495
nhi giai chi tiet nha cac ban