a = \(\frac{-8^3.6^4}{18^{12}}\)
= \(\frac{-2^9.2^4.3^4}{2^{12}.3^{24}}\)
= \(\frac{-2^{13}.3^4}{2^{12}.3^{24}}\)
= \(\frac{-2}{3^{20}}\)
Hk tốt
Rut gon phan so sau
\(\frac{9^9.225^5.8^7}{18^{12}.625^3.24^3}\)
cho phan so a/b co b-a=15 rut gon phan so a/b ta duoc phan so 3/8 tim phan so a/b da cho
Cho cac so nguyen duong a,b,c,x,y,z
1, Biet 1/a = 3/b + c = 5/c + a. Hay rut gon phan so A = a/2b - c
2. Biet a/b = 2b/cc = 4c/a. Hay rut gon phan so B = ab + bc + ca/a2 + b + c2
3. Biet x/a = y/b =z/c. Hay rut gon phan so C = x*y*z*(b+c)*(c+a)*(a+b)/a*b*c(y+z)*(z+x)*(x+y)
4. Biet ab/a + 2b = 2/5; bc/b + 2c = 3/4; ca/c +2a = 3/5. Hay rut gon phan so D = abc/ab+bc+ca
5. Biet 3/a -4b = 5c. Hay rut gon phan so E = 3bc + ab - 4ac/6bc - 8ac -ab
Giup minh nhe! Ai lam duoc va dung cho tick.
Thanks cac ban
Cho cac so nguyen duong a,b,c,x,y,z
1, Biet 1/a = 3/b + c = 5/c + a. Hay rut gon phan so A = a/2b - c
2. Biet a/b = 2b/cc = 4c/a. Hay rut gon phan so B = ab + bc + ca/a2 + b + c2
3. Biet x/a = y/b =z/c. Hay rut gon phan so C = x*y*z*(b+c)*(c+a)*(a+b)/a*b*c(y+z)*(z+x)*(x+y)
4. Biet ab/a + 2b = 2/5; bc/b + 2c = 3/4; ca/c +2a = 3/5. Hay rut gon phan so D = abc/ab+bc+ca
5. Biet 3/a -4b = 5c. Hay rut gon phan so E = 3bc + ab - 4ac/6bc - 8ac -ab
Giup minh nhe! Ai lam duoc va dung cho tick.
Thanks cac ban
rut gon phan so
914 x 2255 x 87
1812 x 6253 x 243
Phan so \(\frac{a}{b}\)sau khi rut gon duoc phan so \(\frac{-8}{11}\) . biet b-a=190 , tim phan so \(\frac{a}{b}\)
cong ca tu va mau cua phan so \(\frac{23}{40}\)voi cung mot so tu nhien N roi rut gon ta duoc phan so \(\frac{3}{4}\)
Phan so \(\frac{a}{b}\) sau khi rut gon duoc phan so \(\frac{-8}{11}\) . Biet rang b - a = 190 , tim phan so \(\frac{a}{b}\) .
rut gon cac phan so sau den toi gian
a.4*3/9*32
b.9*6-9*3/18
c.232323/494949
lam gap cho minh minh like cho
