14×(4⼀7+1⼀2)÷3⼀2 3÷3⼀5-3⼀5÷3 6⼀5×2⼀3-2⼀3×1⼀5 3⼀5+8×(7⼀8-5⼀6)

2025-01-03 07:33:49
推荐回答(2个)
回答1:

14×(4/7+1/2)÷3/2
=(14×4/7+14×1/2)×2/3
=15×2/3
=10
3÷3/5-3/5÷3
=5-1/5
=14/5
6/5×2/3-2/3×1/5
=4/5-2/15
=10/15=2/3
3/5+8×(7/8-5/6)
=3/5+7-20/3
=3/5+1/3
=14/15

回答2:

14×(4/7+1/2)÷3/2
=(14×4/7+14×1/2)×2/3
=15×2/3
=10

3÷3/5-3/5÷3
=5-1/5
=14/5

6/5×2/3-2/3×1/5
=4/5-2/15
=10/15=2/3

3/5+8×(7/8-5/6)
=3/5+7-20/3
=3/5+1/3
=14/15