1.8除以0.54所得的商与2.5相加的和是1.4的多少倍?

问题描述:

1.8除以0.54所得的商与2.5相加的和是1.4的多少倍?

(1.8÷0.54+2.5)÷1.4
=(9/5÷27/50+5/2)÷7/5
=(9/5×50/27+5/2)÷7/5
=(20/6+15/6)×5/7
=35/6×5/7
=25/6