Question

[Nguyễn Trung Kiên]

Tính nhanh phân số \(\dfrac{34+17x14}{16x36-32}\)

34 + 17 × 14 16 × 3 6 – 32 34 + 17 × 14 16 × 3 6 – 32 34 + 17 × 14 16 × 3 6 – 32

Answer 1

[HT.Phong (9A5)]

\(\dfrac{34+17\times14}{16\times36-32}\)

\(=\dfrac{34+\left(17\times2\right)\times7}{16\times36-16\times2}\)

\(=\dfrac{34+34\times7}{16\times\left(36-2\right)}\)

\(=\dfrac{34\times\left(1+7\right)}{34\times16}\)

\(=\dfrac{8}{16}\)

\(=\dfrac{1}{2}\)