7⼀20+(8又1⼀4-6又3⼀5)÷2又3⼀4

7/20+(8又1/4-6又3/5)÷2又3/4怎么做?
2025-05-14 09:55:19
推荐回答(3个)
回答(1):

如图所示:

回答(2):

=7/20+((8+1/4)-(6+3/5))/(2+3/4)
=7/20+((160/20+5/20)-(120/20+12/20))/(40/20+15/20)
=7/20+(165/20-132/20)/(55/20)
=7/20+(33/20)/(55/20)
=7/20+33/55
=385/1100+660/1100
=1045/1100

回答(3):

如图