Question

[Lê Lệ Quyên]

\(\dfrac{111\times118-33}{112\times115+185}\)

Answer 1

[Nguyễn Thị Thương Hoài]

\(\dfrac{111\times118-33}{112\times115+185}\)

= \(\dfrac{111\times\left(115+3\right)-33}{\left(111+1\right)\times115+185}\)

= \(\dfrac{111\times115+111\times3-33}{111\times115+115\times1+185}\)

= \(\dfrac{111\times115+333-33}{111\times115+115+185}\)

= \(\dfrac{111\times115+300}{111\times115+300}\)

= 1