更新时间2018-09-19 06:16:02
(7/8-1/3)×24
=7/8×24-1/3×24
=21-8
=13
(3/4+2/3)×12
=3/4×12+2/3×12
=9+8
=17
满意的话记得采纳啊!
谢谢了!
(7/8-1/3)×24=7/8×24-1/3×24=7×3-8=24-8=16
(3/4+2/3)×12=3/4×12+2/3×12=3×3+2×4=9+8=17
回答完毕保证正确
(7/8-1/3)*24=7/8*24-1/3*24=21-8=13
括号里的分别乘24,21-8=13
=8分之7×24-3分之1×24
=21-8
=13
结果是十三的了
原式=24×7/8-24×1/3
=3×7-8×1
=21-8
=13