Ta có: \(\frac{\left(-2\right)^3.3^3.5^3.7.8}{3.2^4.5^3.14}=\frac{\left(-2\right)^3.3.3^2.5^3.7.2^3}{3.2.2^3.5^3.2.7}=\frac{-\left(2\right)^6.3^2}{2^2}=\frac{\left(-64\right).9}{4}=-\frac{576}{4}\) \(=-144\)
Rut gon phan so:7.9+14.27+21.36 phan 21.27+42.81+63.108.dau cham la nhan nha .mong cac ban giup minh.minh ko xuong dong duoc nen viet nhu the nay .mong cac ban thong cam
\(\frac{\left(-5\right)^3.40.4^3}{135.\left(-2\right)^{14}.\left(-100\right)^0}\)
Giup minh rut gon phan so nhe
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
tìm phân số biết tong cua tu va mau la 25 va khi rut gon thi duoc phan so -2/3
hieu vua mau va tu la 140 va khi rut gon phan so do thi duoc phan so 2/3
tong cua tu so va mau so cua mot phan so la 4812 sau khi rut gon phan so do ta duoc phan so 5/7 hay tim phan so chua rut gon
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
Cong ca tu va mau cua phan so 23/40 voi cung 1 so tu nhien n roi rut gon ta duoc 3/4. Tim so n.
Giai CAN KE den tung chi tiet thi tick. Giai van tat nhu SBT thi nhin nhe !
Rut gon tat ca cac phan so sau: 3.4+3.7/6.5+9 6.9-2.17/63.3-119 minh se tick ai giup minh . mong cac ban giup minh bai nay nha!
