a)\(\frac{4.3}{9.32}=\frac{1}{3.8}=\frac{1}{24}\)
b)\(\frac{9.6-9.3}{18}=\frac{9.3}{9.2}=\frac{9}{1}=9\)
c)\(\frac{232323}{494949}=\frac{232323:10101}{494949:10101}=\frac{13}{49}\)
còn c ở tử là 23 k phải 13 dù cùng chia cho 10101
a)\(\frac{4.3}{9.32}=\frac{1}{3.8}=\frac{1}{24}\)
b)\(\frac{9.6-9.3}{18}=\frac{9.3}{9.2}=\frac{9}{1}=9\)
c)\(\frac{232323}{494949}=\frac{232323:10101}{494949:10101}=\frac{13}{49}\)
còn c ở tử là 23 k phải 13 dù cùng chia cho 10101
Giup minh voi!
Rut gon roi quy dong mau cac phan so sau:
3 . 4 + 3 . 7/6 .5 + 9 va 6 . 9 - 2 . 17/63. 3 - 119
rut gon cac phan so sau
\(\frac{18.2+9}{27}\)
rut gon cac so bang so mu
9 x 9 x 9 x 9
10 x 10 x 10 x 10
2 x2 x2 x3 x3
ai tick minh minh
tick lại cho
rut gon phan so sau:
6*9 -2.17
63*3-119
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
cau 1)
-2/3=.../9 5/7=-10/... .../5=-28/20 4/...=-4/3
cau2)
rut gon phan so 23.33phan 24.32 co ket qua la
a)3/2 b) 2/3 c) 3/4 d) 1/6
cau 3 thuc hien cac phep tinh
a) ( 3/8 + -1/4+ 5/1):2/3
b) 2/3.(-4/5+3/7) -2/7
lam minh nha minh dang can gap
cam on cac ban
tim stn n de phan so A = 8n + 193 phan 4n+3 sao cho
a) co gia tri stn
b) la phan so toi gian
c) voi gia tri nao cua n trong khoang 150 den 170 thi phan so A rut gon duoc
tim n de cac phan so sau rut gon duoc
\(\frac{6n+8}{9n-3}\)
gap lam may bac oi giup em em**** cho