i don't now
mong thông cảm !
...........................
i don't now
mong thông cảm !
...........................
bai4: tim hai phan so toi gian nam giua hai phan so 2/7 va3/7 lam kieu gi
giup minh voi
minh tich 6 ban thoi nha
1,
Tim 1 phan so biet tu so hon mau so 8 don vi va ti so cua tu so va mau so la 5/3
2,
Hay viet cac phan so co mau so la 9 va nam giua 2 phan so 6/18 va 16/27
3,
Hay viet 4 phan so khac nhau sao cho moi phan so lon hon 5/6 va be hon 6/7
Tim mot phan so nam giua hai phan so 1/6 va 1/7
tim 4 phan so nam giua 2 phan so 6/7 va 7/8
Tim 1 phan so co hieu giua Tu so va Mau so la 86 va bang phan so 3/5
tim 1 phan so toi gian co tu so la 3 biet khi cong 1 vao tu so cua phan so do va giu nguyen mau so ta se duoc phan so moi co gia tri bang 1 phan2
Cho cac phan so 5 / 7, 6 / 9 , 12 / 24 , 23 / 24 va 6 / 14
a Tim phan so toi gian
b Phan so nao rut gon duoc . Hay rut gon
ai nhanh nhat minh TICK cho
1,
Tong cua tu so va mau so cua mot phan so nho hon 1bang 120 sau khi rút gon ta được 3/5 . Tim phan so do
2,
Tong cua tu so va mau so cua mot phan so = 92 . Hieu cua tu so va mau so = 22 .Tim phan so do
3,
Tông phan so co tu so =6 nam giua 2 phan so 1/3va1/4
1, viet 5 phan so nam giua 2 phan so 3/5 va 4/5.
2,tim 2 so biet tong cua chung bang 1/4 va thuong cua chung cung bang 1/4