三个简算:2-8⼀15×9⼀16 14÷7⼀5×5⼀7 3÷3⼀4-3⼀4÷3

2024-11-22 22:41:59
推荐回答(1个)
回答(1):

2-8/15×9/16
=2-3/10
=1.7
14÷7/5×5/7
=10×5/7
=50/7
3÷3/4-3/4÷3
=4-1/4
=3.75
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