677x 874+251 _____________ 678 x 874-623 25/08/2021 Bởi Nevaeh 677x 874+251 _____________ 678 x 874-623
Đáp án:677x 874+251/678 x 874-623 =677x 874+251/677 x 874+874-623 =677x 874+251/677 x 874+251 =1 Bình luận
$\dfrac{677 × 874 + 251}{678 × 874 – 623}$ `=` $\dfrac{677 × 874 + 251}{(677 + 1) × 874 – 623}$ `=`$\dfrac{677 × 874 + 251}{677 × 874 + (874 – 623)}$ `=` $\dfrac{677 × 874 + 251}{677 × 874 + 251}$ `=` `1` Bình luận
Đáp án:677x 874+251/678 x 874-623
=677x 874+251/677 x 874+874-623
=677x 874+251/677 x 874+251
=1
$\dfrac{677 × 874 + 251}{678 × 874 – 623}$
`=` $\dfrac{677 × 874 + 251}{(677 + 1) × 874 – 623}$
`=`$\dfrac{677 × 874 + 251}{677 × 874 + (874 – 623)}$
`=` $\dfrac{677 × 874 + 251}{677 × 874 + 251}$
`=` `1`