Ta co : a/b = 45/125 = 9/25
=> a/b = 9.k/25.k
Vi 9/25 la phan so toi gian
=>k=UCLN(a,b)=11
=>k=11
=>a/b = 9.11/25.11 = 99/275
NHỚ TICK CHO MK NHÉ!
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 phan so a/b thoa man:
Phan so a/b=45/100 va UCLN(a,b)=13
Tim phan so \(\frac{a}{b}\) bang phan so \(\frac{18}{27}\) , biet rang UCLN ( a,b ) = 13
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
co the tim duoc hai chu so a va b sao cho phan so \(\frac{a}{b}\) bang so thap phan a,b hay khong ?
tim phan so a/b biet a/b=21/35 va ucln (a,b)=20
Phan so \(\frac{a}{b}\)sau khi rut gon duoc phan so \(\frac{-8}{11}\) . biet b-a=190 , tim phan so \(\frac{a}{b}\)
Phan so \(\frac{a}{b}\) sau khi rut gon duoc phan so \(\frac{-8}{11}\) . Biet rang b - a = 190 , tim phan so \(\frac{a}{b}\) .
Cho phan so a/b
a, =45/54 va UCLN= 12
