Question

Câu hỏi:

12+45-23x34:21+234-67:7=

Các bạn giải hộ với

Answer 1

  12+45-23.34:21+234-67:7

= 12+45-782:21+234-\(\frac{67}{7}\)

= 12+45-\(\frac{782}{21}\)+234-\(\frac{67}{7}\)

= \(\frac{415}{21}\)+ \(\frac{1571}{7}\)

= \(\frac{5128}{21}\)

Hk tốt

Answer 2

\(5128\)nhé bạn

Answer 3

12 + 45 - 23 x 34 : 21 + 234 - 67 : 7

12 + 45 - \(\frac{782}{21}\)+ 234 - \(\frac{67}{7}\)

= \(\frac{415}{21}\) + 234 - \(\frac{67}{7}\)

= \(\frac{5329}{21}\)-  \(\frac{67}{7}\)= \(\frac{5128}{21}\)