12/16x24/36+2
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Các kết quả là :
16 x 24 = 384
36 : 12 = 3
K mk nha
Mk cũng là Fan cũng Sailor Moon
a) 123-3x=24
3x=123-24
3x=99
x=99:3
x=33
Vậy x=33.
b) (x-36):12=6
x-36=6.12
x-36=72
x=72+36
x=108
Vậy x=108.
a)36.28+36.82+4.6.42+8.27.3
=24.31+24.42+24.27
=24.(31+42+27)
=24.100
=2400
b) 36.28+36.82+64.49+64.41
=[36.(28+82)]+[64.(49+41)]
=36.110+64.90
=3960+5760
=21240
a,(-17)+(-83)+2017+53
= -100+2017+53
=1917+53
=1970
b,(-64)+(-12)+(-36)
= -76+(-36)
=-112
c,27.152-22.27+73.130
= 27.(152-22)+73.130
=27.130+73.130
=130.(27+73)
=130.100
=13000
A) (-17)+ (-83)+ 2017+53
=(-17)+ 2017+(-83)+53
=2000+ 30
=2030
B) (-64)+(-12)+(-36)
= -76+(-36)
=-103
C) 27. 152- 22. 27+ 73. 130
=27.(152-22+73). 130
=27. 203. 130
= 5481. 130
= 712530
`3/4 xx 8/9 xx 15/16 xx 24/25 xx 35/36`
`= (3xx8xx15xx24xx35)/(4xx9xx16xx25xx36)`
`=(3xx4xx2xx5xx3xx4xx6xx7xx5)/(4xx3xx3xx4xx4xx5xx5xx6xx6)`
`=(2xx7)/(4xx6)`
`=(2xx7)/(2xx2xx6)`
`=7/12`
\(\dfrac{3}{4}\times\dfrac{8}{9}\times\dfrac{15}{16}\times\dfrac{24}{25}\times\dfrac{35}{36}\)
= \(\dfrac{3\times8\times15\times24\times35}{4\times9\times16\times25\times36}\)
= \(\dfrac{3\times\left(2\times4\text{}\text{}\right)\times\left(3\times5\right)\times\left(6\times4\right)\times\left(5\times7\right)}{4\times\left(3\times3\right)\times\left(4\times4\right)\times\left(5\times5\right)\times\left(6\times6\right)}\)
=\(\dfrac{2\text{}\text{}\times3\times6\times\left(5\times7\right)}{3\times4\times5\times\left(6\times6\right)}\)
=\(\dfrac{\text{}\text{}7}{2\times6}\)= \(\dfrac{7}{12}\)
bài nào bạn ơi ??????????????????????? 1+1=3
\(\frac{2}{8}+\frac{5}{24}+\frac{3}{12}+\frac{4}{36}=\frac{18}{72}+\frac{15}{72}+\frac{18}{72}+\frac{8}{72}=\frac{59}{72}\)
gọi
\(\dfrac{12}{39}=\dfrac{x}{12}=\dfrac{36}{y}\)
có `12/39=x/12`
`=> 12xx12=39x`
`=> 39x=144`
`=> x=48/13`
`12/39=36/y`
`=> 36/117=36/y`
`=> y=117`
`
\(\dfrac{12}{16}\times\dfrac{24}{36}+2\)
\(=\dfrac{3}{4}\times\dfrac{2}{3}+2\)
\(=\dfrac{1}{2}+2\)
\(=\dfrac{1}{2}+\dfrac{4}{2}\)
\(=\dfrac{5}{2}\)
\(\dfrac{12}{16}.\dfrac{24}{36}+2=\dfrac{1}{2}+2=\dfrac{5}{2}\)