126又15分之1除以31,简算并写出过程、答案.
问题描述:
126又15分之1除以31,简算并写出过程、答案.
答
原式 =(126+1/15)/31
=(124+2+1/15)/31
=124/31+2/31+1/(15×31)
=4+30/(15×31)+1/(15×31)
=4+31/(15×31)
=4+1/15
=4又1/15