
展开全部
一加5/8除以5/6乘以8/9。
=1+5/8×6/5×8/9
=1+2/3
=1又2/3
括号5/6减3/4乘以4/15。
=5/6×4/15-3/4×4/15
=2/9-1/5
=1/45
括号3/4减3/4乘以5/6以4/3。
=0×5/6×4/3
=0
=1+5/8×6/5×8/9
=1+2/3
=1又2/3
括号5/6减3/4乘以4/15。
=5/6×4/15-3/4×4/15
=2/9-1/5
=1/45
括号3/4减3/4乘以5/6以4/3。
=0×5/6×4/3
=0
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