rut gon phan so
a, -72/120
b,60/108
c,84/285
c,56.77/35.88
e,36.73-36/81.55+81
rut gon phan so 120/36 dc ket qua la
\(\dfrac{120}{36}=\dfrac{120:12}{36:12}=\dfrac{10}{3}\)
Theo phan so c/d . Neu rut gon c/d phan so thi duoc phan so 6/7 . Neu gam tu so di 12 don vi roi rut gon thi duoc phan so 36/49 . Tim phan so c/d da cho .
hiêụ giữa phân số mới và phân cũ là
6/7-36/49=6/49
mẫu số là
12x49/6=98
tử số là
98/7x6=84
phân số đó là 84/98
Đ/s 84/98
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
xin lỗi tớ ấn nhầm chỗ M=7 tớ làm lại rồi đó
ban tra loi het cac cau hoi phia tren kia ho minh dc ko?
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
Bài 3 : rut gon cac phan so
3232/1717
72/120
213213/405405
\(\frac{3232}{1717}=\frac{32}{17}\)
\(\frac{72}{120}=\frac{3}{5}\)
\(\frac{213213}{405405}=\frac{213}{405}\)
TK MÌNH NHÉ
3232/1717=32/17
72/120=3/5
213213/405405=213/405
k nha chúc bn hok tốt !!!
\(\frac{3232}{1717}=\frac{3232:101}{1717:101}=\frac{32}{12}\)
\(\frac{72}{120}=\frac{72:24}{120:24}=\frac{3}{5}\)
\(\frac{213213}{405405}=\frac{213213:1001}{405405:1001}=\frac{213}{405}\)
HỌC TỐT
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
Cac ban tra loi giup minh di, minh se cho nhieu k!
Please.....!
rut gon phan so sau:
A.1/7 va 4/35
B.5/72 va34/6
C.15/58;24/40 va 6/51
rut gon roi so sanh hai phan so
18/72 va15/20
24/36 va 20/50
5/6 va 45/54
a 1/4 va 1/2
1/4<1/2
2/3>2/5
5/6=45/54(5/6)
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rut gon phan so 42 / 72
\(\frac{42}{72}\) = \(\frac{7}{12}\).
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