\(\frac{18}{31}\)hoặc \(\frac{18}{32}\)
\(\frac{10}{18}< \frac{18}{17}< \frac{10}{17}\)
sai rồi vì\(\frac{18}{17}\)lớn hơn \(\frac{10}{17}\)
\(\frac{10}{18}< \frac{18}{30}< \frac{10}{17}\)
\(\frac{18}{31}\)hoặc \(\frac{18}{32}\)
\(\frac{10}{18}< \frac{18}{17}< \frac{10}{17}\)
sai rồi vì\(\frac{18}{17}\)lớn hơn \(\frac{10}{17}\)
\(\frac{10}{18}< \frac{18}{30}< \frac{10}{17}\)
Dien so thich hop vao cho cham de duoc cac phan so bang nhau:
1/3=....../15=9/.....=...../405
63/....=54/30=...../25
Tim mot phan so thich hop de dien vao cho cham trong moi truong hop sau:
a) 2/5<...<4/7 b)1/3<...<1/2
A ) SO THICH HOP DE VIET VAO CHO CHAM CUA 6km2 = ...?
B ) SO THICH HOP DE VIET VAO CHO CHAM CUA 7km2 650m2 = ...?
AI NHANH MINH TICK !
mot hinh chu nhat co chieu dai 7/18 m va chieu rong 5/21m . tinh nua chu vi cua hinh chu nhat do
( dien phan so toi gian vao cho cham )
viet so thich hop vao cho cham: 1992dm vuong = cmvuong
c1 : so thich hop de dien vao cho cham de 74 ... chia het cho ca 2 va 3 la
a.2
b.6
c.4
d.8
c2 : trong cac phan so duoi day phan so nao bang 2/9
a.5/18
b.6/27
c.14/24
d.10/26
c3:hinh binh hanh co dien tich la 60 cm vuong,chieu cao la 6m thi do dai day cua no la
a.5m
b.20m
c.10cm
d.10cm vuong
c4:rut gon phan so 24/36 ta duoc phan so toi gian la
a.12/18
b.8/12
c.6/9
d.2/3
mong mn giup do
Cau1:Cho: 12*15*18*21... 43= 122*80240.Hay tim chu so thich hop dien vao dau*.
Cau2:Mot doi cong nhan sua duong,ngay thu nhat sua duoc 285m duong, ngay thu hai sua duoc hon ngay thu nhat 15m duong, ngay thu ba sua duoc 267m duong.Hoi trung binh moi ngay, doi do sua duoc bao nhieu m duong?
tim cac chu so thich hop dien vao o trong de so 235..... chia het cho 2 ca 3
dien so thich hop vao cho trong : 4/..........=40/210
GIUP MINH VOI MINH DANG CAN GAP