Question

两道小学算术题4.9X除7/8=1/21/17乘5/32+27/32除17(这道能用简便的用简便)拜托各位第一题的叉叉是

Answer 1

4.9x/[7/8]=1/2

4.9x=1/2*7/8=7/16

x=5/56

1/17*5/32+27/32/17

=1/17*[5/32+27/32]

=1/17*1

=1/17