Các câu hỏi tương tự
tim 1 phan 2 ; 1 phan 3 ; 1 phan 5 ; 1 phan 6 ; 1 phan 10 ; 1 phan 12 cua 60
tim 15% ; 20%; 50%; 75% cua 60
tim cac so ma 60 chia het cho so do.
1) co bao nhieu so co 3 chu so ma ko chia het cho 5
2) tim so hang thu 100 cua day so: 1; 4;9;25;36...
3) tim phan so thu 100 cua day phan so:
1/2; 1/6; 1/12; 1/20; 1/30...
1 .trung binh cong cua hai phan so la 5/12 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 2/3 .tim hai phan so do .
2.trung binh cong cua ba phan so la 13 /36 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 19/36 ,cho biet phan so thu hai lon hon phan so thu ba 1 /12. tim ba phan so do .
Toan nghi ra 1 phan so sau do Toan chia tử số của phan so do cho 2 va nhan mau so cua phan so do voi 4 thi Toan thay gia tri phan so giam di 15/8.Tim phan so ma Toan nghi
Khi chia 1 so thap phan ma co chu so o hang thap phan la 5 cho 125, 1 ban bo quen chu so 1 o hang don vi cua so thap phan , vi vay ket qua giam di 45,008 don vi.Tim so thap phan biet ket qua cua ca 2 truong hop deu la so chia het.
tim 1 phan so = phan so 3/4 va biet neu lay tu so cua phan so do congg 5 thi duoc phan so = phan so 4/5
thank you
1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi...
Đọc tiếp
1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?
2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?
3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?
4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1, con neu giu nguyen tu so va cong them 3 thi ta duoc phan so moi bang 1/2 .Tim phan so do?
5. Hay cho biet co tat ca bao nhieu so co 3 chu so ma tong co chu so cua moi so bang 4 . co tat ca bao nhieu so thoa man?
b1; cho phan so 19 phan 35 . tim 1 so sao lay tu so cua phan so 19 phan 35 tru di so do va cong so do vao mau so thi duoc 1 phan so moi co gia tri bang 1 phan 2.
b2 ; mot hinh chu nhat co chieu rong 3 1 phan 2 m , chieu dai hon chieu chieu rong la1 1 phan4 m . tinh chu vi va dien tích cua hinh chu nhat do
cac bn nho ghi ro loi giai nha , ai dung va nhanh thi mk tick cho
quy dong cac phan so sau a, 1 phan 3 va 5 phan 6 b,7 phan 9 va 1 phan 6 c, 12 phan 15 va 2 phan 5