8⼀7×21⼀16+2⼀5怎么算?

2025-03-04 04:52:26
推荐回答(2个)
回答1:

解:8/7×21/16+2/5
=8/16×21/7+2/5
=1/2×3+2/5
=3/2+2/5
=19/10
=1.9

回答2:

=8/16*21/7+2/5
=3/2+2/5
=15/10+4/10
=19/10