Ta có a/b=18/27=2/3
Vì WCLN là 13
=> a/b=26/39
Ta có a/b=18/27=2/3
Vì WCLN là 13
=> a/b=26/39
tim phan so a/b bang phan so 18/27 biet rang ucln(a,b)=13
Tim phan so \(\frac{a}{b}\) bang phan so \(\frac{18}{27}\) , biet rang UCLN ( a,b ) = 13
tim mot phan so co mau la 11 biet rang khi tu tru 18 va nhan mau voi 7 thi duoc mot phan so bang phan so da chotim mot phan so co mau la 11 biet rang khi tu tru 18 va nhan mau voi 7 thi duoc mot phan so bang phan so da cho
1)tim phan so bang phan so \(\frac{32}{60}\)biet tu va mau bang 115
2)tim phan so \(\frac{a}{b}\)=\(\frac{60}{108}\)biet UCLN(a,b)
Tim mot phan so co mau so bang 11, biet rang khi lay tu so cua phan so do tru di 18 va mau so cua phan so do nhan voi 7 thi duoc phan so moi co gia tri bang phan so can tim.Phan so do la?
tim mot phan so bang phan so 15/16 biet ucln tu va mau cua phan so do bang 24
B1)Tim X biet
A)3(X-4)-(8-X)=12
B)4(X-5)-(X=7)=-19
C)7(X-3)-5(3-X)=11X-5
B2)a)Chung to rang cac phan so tren bang nhau
A)25/53:2525/5353:252525/535353
B)37/41:3737/4141:373737/414141
b)Tim phan so bang phan so 11/33 va biet rang hieu cua mau va tu cua no bang 6
tim phan so \(\frac{a}{b}\) co gia tri bang phan so \(\frac{60}{108}\) biet
a, UCLN(a,b)=30
b,BCNN(a,b)=180
giai nhanh ho mk nha
a, Chung minh rang 5m+3 va 3m+2 la 2 so nguyen biet rang 1 so bang 10 ngen to cung nhau voi m la so nguyen to bat ky.
b,Tim 1 bo ba so nguyen to biet rang 1 so bang 10 phan tram tong cua 3 so can tim
Ai lam nhanh nhat minh tick cho
