= 200 . k cho mình nha

45+45+10 +25+14+26 = 200

5/2+13/6+25/12+41/20+61/30+85/42

=2+1/2+2+1/6+2+1/12+2+1/20+2+1/30+2+1/42
=12+(1/2+1/6+1/12+1/20+1/30+1/42)

=12+(1/1.2+1/2.3+1/3.4+1/4.5+1/5.6+1/6.7)

=12+(1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7)

=12+1-1/7

=90/7

5/2+13/6+25/12+41/20+61/30+85/42

=2+1/2+2+1/6+2+1/12+2+1/20+2+1/30+2+1/42
=12+(1/2+1/6+1/12+1/20+1/30+1/42)

=12+(1/1.2+1/2.3+1/3.4+1/4.5+1/5.6+1/6.7)

=12+(1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7)

=12+1-1/7

=90/7

\(26\times\left(-25\right)+36\times\left(-25\right)\)

\(=\left(-25\right)\times\left(26+36\right)=\left(-25\right)\times62=-1550\)

\(26.\left(-25\right)+36.\left(-25\right)\)

\(=\left(-25\right).\left(26+36\right)\)

\(=-25.62\)

\(=-1550\)

16/15 x 25/24 x 36/35 x.........x 10000/9999

=16 x 25 x 36......10000 / 15 x 24 x35 .....9999

= ( 4 x 4 ) x ( 5 x 5 ) x ( 6 x 6 ).........( 100 x 100 ) / ( 3 x 5 ) x ( 4 x 6 ) x ( 5 x 7 ) ........( 99 x 101 )

= ( 4 x 5 x 6 x..........100 ) x ( 4 x 5 x 6 ........... x100) / ( 3 x 4 x 5 x 99 ) x ( 5 x 6 x 7.........x 101 )

= 100 x 4 / 3 x 101

= 400/ 303

Hãy k cho mình nha

Bằng 80000/69993

Mình ko chắc nữa số hơi to ( nếu đúng k cho mình nha ✔  

35 . 23 .+ 35 . 41 + 64 . 65 =35(23+41)+64.65=35.64+64.65=64(35+65)=64.100=6400

29 . 87 - 29 . 23 + 64 . 71 =29(87-23)+64.71=29.64+64.71=64(29+71)=29.100=2900

27 . 121 - 87 . 27 + 73 . 34 =27(121-87)+73.34=27.34+73.34=34(27+73)=34.100=3400

    35 . 23 + 35 . 41 + 64 . 65                                29 . 87 - 29 . 23 + 64 . 71

= 35 . ( 23 + 41 ) + 64 . 65                           = 29 . ( 87 - 23 ) + 64 . 71

= 35 . 64 + 64 . 65                                        = 29 . 64 + 64 . 71

= 64 . ( 35 + 65 )                                           = 64 . ( 29 + 71 )

= 64 . 100                                                      = 64 . 100

= 6400                                                           = 6400

                       27 . 121 - 87 . 27 + 73 . 34

                = 27 . ( 121 - 87 ) + 73 . 34

                = 27 . 34 + 73 . 34

                = 34 . ( 27 + 73 )

                = 34 . 100

                = 3400

Đó chính là câu trả lời bạn nhớ tích cho mình nhé

a) 35.23+35.41+64.65

= 35.(23+41)+64.65

=35.64+64.65

=64.(35+65)

=64.100

=6400

b) 29.87-29.23+64.71

=29.(87-23)+64.71

=29.64+64.71

=64.(29+71)

=64.100

=6400

c) 27.121-87.27+73.34

=27.(121-87)+73.34

=27.34+73.34

=34.(27+73)

=34.100

=3400

26 + 35 = 61           26 + 31 = 57              33 + 33 = 66            214 + 21 = 235

k mk nha  phù thủy xinh đẹp 

26+35=61

26+31=57

33+33=66

214+21=235

ai có ảnh alien mình k 5 cái hứa luôn

\(=\frac{25}{35}\times\frac{18}{12}\times\frac{63}{24}\)

\(=\frac{5}{7}\times\frac{3}{2}\times\frac{21}{8}\)

\(=\frac{5\times3\times3}{1\times2\times8}\)

\(=\frac{45}{16}\)

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