1⼀2+3⼀4-3⼀10= 2⼀34⼀7+5⼀6= 10⼀(2⼀3+1⼀2)= 1⼀6-(5⼀12-1⼀4)=

2025-01-06 02:00:51
推荐回答(1个)
回答1:

1/2+3/4-3/10
=5/4-3/10
=19/20

2/3-4/7+5/6
=2/3+5/6-4/7
=3/2-4/7
=13/14

10/(2/3+1/2)
=10÷7/6
=60/7
=8又4/7

1/6-(5/12-1/4)
=1/6-1/6
=0