rút gọn phân số 16 x 29 – 32 / 16 x 37+ 32 3^6 x 10 x 35 / 2^3 x 63 x 35 22/08/2021 Bởi Nevaeh rút gọn phân số 16 x 29 – 32 / 16 x 37+ 32 3^6 x 10 x 35 / 2^3 x 63 x 35
$\frac{16.29-32}{16.37+32}$ = $\frac{16.29-16.2}{16.37+16.2}$ = $\frac{16.(29-2)}{16.(37+2)}$ = $\frac{16.27}{16.39}$ = $\frac{27}{39}$ $\frac{3^6.10.35}{2^3.63.35}$ = $\frac{729.10.35}{8.63.35}$ = $\frac{7290.35}{504.35}$ = $\frac{7290}{504}$ = 14$\frac{13}{28}$ Chúc học tốt!!! Bình luận
Đáp án: `(16 × 29 – 32) / (16 × 37+ 32)` `=(16 × 29 – 16 × 2)/(16× 37 + 16 × 2)` `=(16×(29-2))/(16×(37+2))` `=(16 × 27)/(16×39)` `= (\cancel16 × 27)/(\cancel16×39)` `= 27/39 = 9/13` ___________________________________ `(3^6 × 10 × 35)/( 2^3 × 63 × 35)` `= (3^5 × 2 × 5 ×5 × 7)/( 2^3 × 3 × 3 × 7 × 5 × 7)` `=(\cancel3^5 × \cancel2 × \cancel5 ×5 × \cancel7)/( \cancel2^3 × \cancel3 × \cancel3 × \cancel7 × 5 × 7)` `= (3^2 × 5 )/(2^2 × 7)` `= 45/28` `Go od luck!` Bình luận
$\frac{16.29-32}{16.37+32}$
= $\frac{16.29-16.2}{16.37+16.2}$
= $\frac{16.(29-2)}{16.(37+2)}$
= $\frac{16.27}{16.39}$
= $\frac{27}{39}$
$\frac{3^6.10.35}{2^3.63.35}$
= $\frac{729.10.35}{8.63.35}$
= $\frac{7290.35}{504.35}$
= $\frac{7290}{504}$
= 14$\frac{13}{28}$
Chúc học tốt!!!
Đáp án:
`(16 × 29 – 32) / (16 × 37+ 32)`
`=(16 × 29 – 16 × 2)/(16× 37 + 16 × 2)`
`=(16×(29-2))/(16×(37+2))`
`=(16 × 27)/(16×39)`
`= (\cancel16 × 27)/(\cancel16×39)`
`= 27/39 = 9/13`
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`(3^6 × 10 × 35)/( 2^3 × 63 × 35)`
`= (3^5 × 2 × 5 ×5 × 7)/( 2^3 × 3 × 3 × 7 × 5 × 7)`
`=(\cancel3^5 × \cancel2 × \cancel5 ×5 × \cancel7)/( \cancel2^3 × \cancel3 × \cancel3 × \cancel7 × 5 × 7)`
`= (3^2 × 5 )/(2^2 × 7)`
`= 45/28`
`Go od luck!`