Question

[Mai Thế Đức Anh]

\(A=\frac{10.20+20.90}{100.5+100.5}\)

Answer 1

[Park Jimin - Mai Thanh Hoa]

\(A=\frac{10.20+20.90}{100.5+100.5}=\frac{20.\left(10+90\right)}{100.\left(5+5\right)}\)

\(=\frac{20.100}{100.10}=\frac{20}{10}=2\)

Answer 2

[✎﹏ðℴℛαℯℳℴท(ϑăท+Շℴáท)╰☜]

\(A=\frac{10.20+20.90}{100.5+100.5}\)=\(\frac{2.1+1.18}{5.1+5.1}=\frac{20}{10}=2\)