计算。(能简算的要简算) 1.8⼀9×1⼀3+2⼀3 2.1除以(1⼀2+2⼀3) 3. 5.5除以(1-1⼀8-2⼀3) 5⼀12×2⼀3除以5⼀24

2/3除以(1/2-1/3)
2025-03-06 18:41:58
推荐回答(1个)
回答1:

1.8/9×1/3+2/3
=8/27+18/27
=26/27

2.1除以(1/2+2/3)
=1÷1
=1

3. 5.5除以(1-1/8-2/3)
=5.5÷(1/3-1/8)
=5.5÷(8/24-3/24)
=5.5÷5/24
=5.5×24/5
=1.1×24
=26.4

5/12×2/3除以5/24
=5/18×24/5
=24/18
=4/3

2/3除以(1/2-1/3)
=2/3÷1/6
=4