19/8+5/4-27/7-233/56
29/8-27/7-233/56
202/56-10216/56-233/56
-14/56-233/56
-247/56
Bài làm
\(2\frac{3}{8}+1\frac{1}{4}+3\frac{6}{7}-4\frac{9}{56}\)
\(=\frac{19}{8}+\frac{5}{4}+\frac{27}{7}-\frac{233}{56}\)
\(=\frac{133}{56}+\frac{70}{56}+\frac{216}{56}-\frac{233}{56}\)
\(=\frac{186}{56}\)
\(=\frac{93}{28}\)
\(2\frac{3}{8}+1\frac{1}{4}+3\frac{6}{7}-4\frac{9}{56}\)
\(=\frac{19}{8}+\frac{5}{4}+\frac{27}{7}-\frac{233}{56}\)
\(=\frac{133}{56}+\frac{70}{56}+\frac{216}{56}-\frac{233}{56}\)
\(=\frac{133+70+216-233}{56}\)
\(=\frac{186}{56}=\frac{93}{28}\)
19/8+5/4+27/7-233/56
29/8+27/7-233/56
203/56+216/56-233/56
93/28
Trả lời:
\(2\frac{3}{8}+1\frac{1}{4}+3\frac{6}{7}-4\frac{9}{56}\)
\(=\frac{19}{8}+\frac{5}{4}+\frac{27}{7}-\frac{233}{56}\)
\(=\frac{133}{56}+\frac{70}{56}+\frac{216}{56}-\frac{233}{56}\)
\(=\frac{186}{56}\)
\(=\frac{93}{28}\)
Mọi người làm đúng nhưng chưa đưa về hỗn số ! Đưa về hỗn số là 3 / 9 / 28
