简算题 (2/3-2/5)除以(1/8+5/12)

问题描述:

简算题 (2/3-2/5)除以(1/8+5/12)

(2/3-2/5)除以(1/8+5/12)
=(2/3×24-2/5×24)除以(1/8×24+5/12×24)
=(16-9.6)除以(3+10)
=6.4÷13
=64/130