16.17-5
16.16+11
16.17-5/16.16+11 = ?
\(\frac{16.17-5}{16.16+11}=\frac{16.16+16-5}{16.16+11}=\frac{16.16+11}{16.16+11}=1\)
\(\frac{16.17-5}{16.16+11}\)
\(\frac{16.17-5}{16.16+11}\)
= \(\frac{16.\left(16+1\right)-5}{16.16}\)
= \(\frac{16.16+16-5}{16.16+11}\)
= \(\frac{16.16+11}{16.16+11}\)
= \(1\)
\(\frac{16.17-5}{16.16+11}=\frac{17-5}{16+11}=\frac{8}{27}\)
Hok tốt ~~
K chắc đâu
# DanLinh
\(\frac{16.17-5}{16.16+11}\)
= \(\frac{16.\left(16+1\right)-5}{16.16+11}\)
=\(\frac{16.16+16-5}{16.16+11}\) ( nhân tử chung )
= \(\frac{11}{11}\)
=1
(16.17-5):(16-16+11) tinh
( 16 . 17 - 5 ) : ( 16 - 16 + 11 )
= 267 : 11
= 24,2727272727
Có sai đề ko hả bạn.
Tính nhanh \(\dfrac{16.17-5}{16.16+11}\)
Ta có: \(\dfrac{16.17-5}{16.16+11}\)= \(\dfrac{16.\left(16+1\right)-5}{16.16+11}\)
= \(\dfrac{16.16+16-5}{16.16+11}\)= \(\dfrac{16.16+11}{16.16+11}\)= 1
\(\dfrac{16.17-5}{16.16+11}\) = \(\dfrac{16.\left(16+1\right)-5}{16.16+11}\) = \(\dfrac{16.16+16-5}{16.16+11}\) =\(\dfrac{16.16+11}{16.16+11}=1\)
Tính hợp lý
( 16.17 - 5 ) : ( 16 . 16 - 11 )
Dấu chấm là nhân á ^.^
\(\frac{16\cdot17-5}{16\cdot16-11}=\frac{17-5}{16-11}=\frac{12}{5}=2,4\)
# Yến Hải
Cái này có phải là phân số đâu ạ :)))
Gỉai:
\(\frac{16.17-5}{16.16-11}=\frac{17-5}{16-11}=2,4\)
~Study well~ :)
bài 1 tính
a) (3/7+-9/8)+(5/8+-6/14)
b) (-5/7+3/11)+(-11/14+14/-11)
c)(-4/5+2/3)+(-5/4+19/5)+(7/3.2)
d)9/16.13/4-9/4.5/16+9/16.17/4
Tính nhanh:
a,(44.52.60):(11.13.15)
b,(168.168-168.58):110
c,(16.17-5):(16.18+11)
d,[27.45+27.55(2+4+6+...+18)]
e,999-171
g,1+6+11+16+...+51
tính
a) 100 : 17 + 53 : 17
b) 1895 : 5 - 1745 :5
c) (864.48 - 432.96) : (864.48.432)
d) (16.17 - 5) : (16.16 + 11)
trả lời gấp cho mik nha
a) \(100:17+53:17=\left(100+53\right):17=153:17=9\)
b) \(1895:5-1745:5=\left(1895-1745\right):5=150:5=30\)
c) \(\left(864.48-432.96\right):\left(864.48.432\right)\)
\(=\left(864.48-432.2.48\right):\left(864.48.432\right)\)
\(=\left(864.48-864.48\right):\left(864.48.432\right)\)
\(=0:\left(864.48.432\right)\)
\(=0\)
d) \(\left(16.17-5\right):\left(16.16+11\right)\)
\(=\left[16.\left(16+1\right)-5\right]:\left(16.16+11\right)\)
\(=\left[16.16+16-5\right]:\left(16.16+11\right)\)
\(=\left[16.16+11\right]:\left(16.16+11\right)\)
\(=1\)
_Chúc bạn học tốt_
Tính :
a) \(\frac{16.17-5}{16.16+11}\)
b) \(\frac{5}{30}+\frac{15}{90}+\frac{25}{150}+\frac{35}{210}+\frac{45}{270}\)
a) \(\frac{16.17-5}{16.16+11}=\frac{16.16+16-5}{16.16+11}=\frac{16.16+11}{16.16+11}=1\)1
b ) \(\frac{5}{30}+\frac{15}{90}+\frac{25}{150}+\frac{35}{210}+\frac{45}{270}=\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}\)
\(=\frac{1}{6}.5=\frac{5}{6}\)
a) (16x17-5)/(16x16+11)=(16x16-5+16)/(16x16+11)=1
b) (1x5)/(6x5)+(3x5)/(18x5)+...+(9x5)/(54x5)
=1/6+1/6+1/6+1/6+1/6
=5/6