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rút gon phân số 1.3.5...99/51.52.53...100
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
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
Rut gon cac phan so sau
\(\frac{\left(-5\right)^2.\left(-6\right)^{11}.16^2-6^2.\left(-12\right)^6.15^2}{2.\left(-6\right)^{12}.10^4-81^2.960^3}\)
Cac ban giai nhanh va chi tiet cho mk nha
Minh xin cam on nhieu
mách mk bài này rut gon phan so 2^11 * 3^11 + 2/41 *3^6 phần 2^10* 3^32 + 2^40 *3^7
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 !
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
