Question

Answer 1

\(\dfrac{x+15}{88}=\dfrac{23}{8}\)

\(x+15=\dfrac{23}{8}\times88\)

\(x+15=253\)

\(x=253-15\)

\(x=238\)

Answer 2

\(\dfrac{x+15}{88}=\dfrac{23.11}{8.11}\)

khử mẫu

x+15=253

x=253-15

x=238

Answer 3

x = 238

Answer 4

\(\text{x+1588=238x+1588=238 x+15=238×88x+15=238×88 x+15=253x+15=253 x=253−15x=253−15 x=238}\)

Answer 5

Quy đồng: \(\dfrac{23}{8}=\dfrac{23x11}{8x11}=\dfrac{253}{88}\)

Sau đó ta biết \(\dfrac{253-15}{88}=\dfrac{238}{88}\)

Vậy số cần điền là: 238