Question

[Bùi Phúc An]

Tính

2-7/8=

3/4-4/5=

3+4/5

Answer 1

[»βέ•Ҫɦαηɦ«]

9/8

-1/20

19/5

Answer 2

[Tho Nguyen Van]

2 - \(\frac{7}{8}\)= \(\frac{16}{8}\)- \(\frac{7}{8}\)= \(\frac{9}{8}\)

\(\frac{3}{4}\)+\(\frac{4}{5}\)= \(\frac{15}{20}\)+\(\frac{16}{20}\)=\(\frac{31}{20}\)

3 + \(\frac{4}{5}\)= \(\frac{15}{5}\)+\(\frac{4}{5}\)= \(\frac{19}{5}\)