tong hai phan so la :7/12.o cau tren minh viet lon nhe moi nguoi
cac ban tra loi cach lam ho minh voi
tong cua hai phn so la 14 phan 25.neu them vao phan so thu nhat 2 phan 5 thi tong hai phan so la bao nhieu
phan so thu nhat la 4/5,phan so thu hai la 2/7.hay tinh tong, hieu.tich.tuong cua phan so thu nhat va phan so thu hai
Phan so thu nhat la 4/5, phan so 2/7. Tinh tong,hieu,tich,thuong cua phan so thu nhat va phan so thu hai
Mẹ hơn con 30 tuoi neu cong tuoi con vao tuoi me thi duoc 1 so bang 5 phan tu tuoi me tìm tuoi me con
3 phan tu cua 20m là bao nhieu
5 phan 6 cua 25 kg la
Mot HCNco chu vi bang 3 lan chieu dai chieu rong la 20m tim chieu dai
Tong 2 so la 64 neu so hang 1 nhan 6 so hang 2 nhan 4 thi tong moi la 356 tim 2 so
27×28×29×y=701a68 tim a
1 quang duong dai 171 m ngay 1 sua 1phan 3 ngay 2 sua 1phan 3 ngay thu nhat hoi ngay 3 can sua bao nhieu thihet quang duong
Tuoi ong cong chau la 78 biet tuoi ong bao nhieu nam thi tuoi chau bay nhieu thang tinh tuoi ong chau
Phan so thu nhat \(\frac{4}{5}\) phan so thu hai la \(\frac{2}{7}\). Hay tinh tong, hieu,tich, thuong cua phan so thu nhat va phan so thu hai.
1) Mot hinh chu nhat co chu vi la 320 cm . Biet neu viet them chu so 1 vao ben trai so do chieu rong thi duoc so do chieu dai . Tim dien tich cua hinh chu nhat ?
2) Viet cac phan so sau day thanh tong 3 phan so sao cho moi phan so co tu so la 1 , mau so khac nhau
a) 11/26 ; b) 7/8
tim 1 phan so, biet rang neu cong them 2 don vi o tu so va bot 2 don vi o mau so thi duoc phan so moi co tong tu so va mau so la 97.Neu them vao tu so 7 don vi va bot 8 don vi o mau so thi duoc phan so moi co gia tri bang 1
Tim 3 phan so khac nhau ,biet tong cua phan so thu 1 va phan so thu 2 la 7/8 ,tong cua phan so thu 2 va phan so thu 3 la 8/7 ,tong cua phan so thu 1 va phan so thu 3 la 8/9.
Viet cacphan so sau thanh tong cua 3 phan so .
a) 1/5 ; b) 1/83
Tong chieu dai cua 3 tam vai la 113 m . Neu cat di 1/3 chieu dai cua tam thu nhat, 1/5 chieu dai cua tam thu hai va 2/9 chieu dai cua tam thu ba thi phan con lai cua 3 tam vai dai bang nhau . Hoi moi tam vai dai bao nhieu met ?