作业帮91/100*1/7+9/100÷7+1/7 简便计算!
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/09 08:11:34
91/100*1/7+9/100÷7+1/7 简便计算!
91/100*1/7+9/100÷7+1/7 简便计算!
91/100*1/7+9/100÷7+1/7 简便计算!
91/100*1/7+9/100÷7+1/7
=91/(100*7)+9/(100*7) +1/7
=(91+9)/(100*7) +1/7
=1/7+1/7
=2/7
91/100×1/7+9/100÷7+1/7
=91/100×1/7+9/100×1/7+1/7
=(91/100+9/100+1×1/7
=2×1/7
=2/700
91/100*1/7+9/100÷7+1/7
=91/100×1/7+9/100×1/7+1×1/7
=(91/100+9/100+1)×1/7
=2/7
91/100*1/7+9/100÷7+1/7
=91/100*1/7+9/100*1/7+1*1/7
=(91/100+9/100+1)*1/7
=2*1/7
=2/7