dien dau <,>,=
1phan2+ 1phan4... 1
1phan 5+ 2 phan 13...1
1phan 12+ 2 phan 14 ...1
1phan 2 +2phan 3... 1
cho phan so 11phan 20 va 30 phan 12 hay qua dong lam nhanh len nhe minh se tich cho
chuyen cac hon so thanh phan so roi thuc hien phep tinh : 2 2/3 +1 4/7
tim cac phan so lon hon 5phan 6 va be hon 11phan 12 co mau so la 48
Gọi số cần tìm là x
Ta có\(\frac{5}{6}< x< \frac{11}{12}\)
Mà \(\frac{5}{6}=\frac{40}{48}\)
và\(\frac{11}{12}=\frac{44}{48}\)
Nên \(\frac{40}{48}< x< \frac{44}{48}\)
Nên \(x\in\left\{\frac{41}{48};\frac{42}{48};\frac{43}{48}\right\}\)
Vậy...
Tính
2^3 +3x(-1phan 2)^0x(1 phan 2)^2x4+ơ(-2)^2:1phan2]:8
ý b 3^2x1 phan 243x 81^x1phan33
1so sanh phan so
12/25 va 25/49 80/95 va 144/153
6 tinh gia tri bieu thucphanso
1phan 72+1phan56+1 phan 42+ 1phan 30 +1phan 20 + 1phan 12
7tinh nhanh phan so
17 phan 12+ 9phan 7-(2phan7 -7phan 12)
11phan7 nhan (38 phan 45 nhan 17 phan 11 )
(1+1phan2 ) nhan (1+1phan3 ) nhan ....... nhan (1+1phan2005
9 cho phan so 25phan 42 tim so tu nhien a sao cho khi them vao tu so cua phan so da cho va giu nguyen mau so thi duoc phan so moi bang 6phan 7
BAI 1 TINH GIA TRI CUA BTHUC
A=3PHAN 1+CAN 3 -2PHAN 1-CAN 3
B=CAN 10-CAN 5 PHAN CAN 2-1 -3CAN 5 +5PHAN CAN 5+3 +2 PHAN CAN 2
BAI 2 GIAI PT
a)CAN 49-28X+4X MU 2 -5=0
b)1PHAN 2 CAN X-2 -4 CAN 4X -8 PHAN 9 +CAN 9X+18 -5=0
MOI NGUOI GIUP MINH VS MINH CAN LUON BAY GIO
CAM ON
TINH A 2PHAN 8 NHAN 4 PHAN 7 CHIA 3PHAN 14 B 6 CHIA 1PHAN 3 NHAN 2PHAN 9 GIUP TO GAP TO CAN LOI GIAI CHI TIET VA NGAY BAY GIO
1phan2+1phan -3+1phan4+1phan6
ketqua la bao nhieu? nhanh tick
Ta có: \(\frac{1}{2}+\frac{1}{-3}+\frac{1}{4}+\frac{1}{6}\)
\(=\frac{1}{2}-\frac{1}{3}+\frac{1}{6}+\frac{1}{4}\)
\(=\frac{1}{6}+\frac{1}{6}-\frac{1}{4}\)
\(=\frac{1}{3}+\frac{1}{4}=\frac{7}{12}\)
tinh bang 2 cach ;a; mo ngoac 1phan 3 cong2 phan 5 dong ngoac nhan 3phan 4 b;mo ngoac 7phan 9 cong 2phan 3 dong ngoac chia 5phan 6
Bai 1 Tim x
A) x nhan 4 phan 5 = 1 phan 2 nhan 1 phan 3
B ) x : 2 phan 5 = 2phan 3 + 1 phan 2