算一算【写过程】 5⼀8*1⼀2*4⼀5= 2⼀3÷4⼀9*3⼀10= 5⼀6*4⼀5÷1⼀2= (3⼀4-5⼀12)*24= (1⼀2+1⼀6)÷1⼀12=

3/5*1/7+2/5*5/7=急急急
2024-11-30 18:44:56
推荐回答(1个)
回答1:

5/8*1/2*4/5=1/4
2/3÷4/9*3/10
=2/3x9/4x3/10
=9/20
5/6*4/5÷1/2
=5/6x4/5x2
=4/3
(3/4-5/12)*24
= 3/4x24-5/12x24
=18-10
=8

(1/2+1/6)÷1/12
=1/2x12+1/6x12
=6+2
=8