rut gon
52 . 611. 126 . 152 / 2. 612. 104- 812. 9603
rut gon phan so
-104/182
Rut gon phan so
18.34+(-18).124/(-36).17+9.(-52)
ta có : \(\frac{18\cdot34+\left(-18\right)\cdot124}{\left(-36\right)\cdot17+9\cdot\left(-52\right)}\) =\(\frac{18\cdot34-18\cdot124}{9\cdot\left(-4\right)\cdot17+9\cdot-52}\)
=\(\frac{18\cdot\left(34-124\right)}{9\cdot\left(-68+-52\right)}\)
=\(\frac{18\cdot\left(-90\right)}{9\cdot\left(-120\right)}=\frac{3}{2}\)
0,36x123+0,9x4567x4+3x5310x1,2
---------------------------------------------------
1+4+7+10+.......................52+55
tinh nha rut gon
cầu 2;khoảng cách giữa các số là 3 .tìm số phần tử (55-1):3+1=19 phần tử rồi lấy (55+1) x 19 :2=532 tổng là 532 câu 1 ;35601,48
1 Rut gon
272727/363636
6/9
12/36
60/105
42/126
75/300
lam tung buoc nha
272727/363636=272727:90909/363636:90909=3/4
6/9=6:3/9:3=2/3
12/36=12:12/36:12=1/3
60/105=60:15/105:15=4/7
42/126=42:42/126:42=1/3
75/300=75:75/300:75=1/4
272727/363636=272727:90909/363636:90909=3/4
6/9=6:3/9:3=2/3
12/36=12:12/36:12=1/3
60/105=60:15/105:15=4/7
42/126=42:42/126:42=1/3
75/300=75:75/300:75=1/4
a/ \(\frac{272727}{363636}=\frac{27.10101}{36.10101}=\frac{27}{36}=\frac{3}{4}\)
b/ \(\frac{6}{9}=\frac{2}{3}\)
c/ \(\frac{12}{36}=\frac{1}{3}\)
d/ \(\frac{60}{105}=\frac{4}{7}\)
e/\(\frac{42}{126}=\frac{1}{3}\)
f/\(\frac{75}{300}=\frac{1}{4}\)
Rut gon: A=212.14.125 phan 355.6
B=210.13 +210.65 phan 28.104.
C=713+75 phan 710 +72.
A = \(\dfrac{21^2.14.125}{35^5.6}\)
= \(\dfrac{\left(3.7\right)^2.\left(2.7\right).5^3}{\left(5.7\right)^5.\left(2.3\right)}\)
= \(\dfrac{3^2.7^2.2.7.5^3}{5^5.7^5.2.3}\)
= \(\dfrac{3^2.7^3.2.5^3}{5^5.7^5.2.3}\)
= \(\dfrac{3}{5^2.7^2}\)
= \(\dfrac{3}{35^2}\)
@Pham Thi Thu Trang
B = \(\dfrac{2^{10}.13+2^{10}.65}{2^8.104}\)
= \(\dfrac{2^{10}\left(13+65\right)}{2^8.104}\)
= \(\dfrac{2.78}{104}\)
= \(\dfrac{3}{2}\)
@Pham Thi Thu Trang
C = \(\dfrac{7^{13}+7^5}{7^{10}+7^2}\)
= \(\dfrac{7^5\left(7^8+1\right)}{7^2\left(7^8+1\right)}\)
= 73
@Pham Thi Thu Trang
cho ps a\b rut gon 3\5 neu them 6 vao mau giu nguyen tu ta duoc 1 ps moi rut gon =2\3 tim ps a\b
Gia tri rut gon cua a = 18.123+9.4567.2+3.5310.6
1+4+7+10...+49+52+55+58-490 là
do moi nguoi 121/243 co rut gon duoc nua hay khong neu co thi rut gon ho minh nha
neu 1 so tinh huong giao tiep hang nga cua em (hoac nhung nguoi xung quanh )co su dung cau rut gon trong do;
- Su dung cau rut gon dung hieu ua
-Su dung cau rut gon ko dung vi pham nguyen tac ngon ngu
*Bạn ăn cơm chưa?
-Chưa.
*Hôm nay bạn đi đâu?
-Hà Nội.
*Bạn học lớp mấy?
-8.
*Bạn nghỉ học từ bao giờ?
-Sáng.
cho phân số c/d. neu rut gon phan so c/d thi duoc phan so 2/5. neu giam tu so di 12 đv roi rut gon thi duoc phan so 4/25. tim phan so c/d.
là 20/50 đó mk chăcs thế mk đầu tien k cho mk nhé