8⼀13×5⼀4-12.5%×3⼀13-3⼀13×5⼀4 简算

8/13×5/4-12.5%×3/13-3/13×5/4 简算
2025-03-23 13:47:39
推荐回答(2个)
回答(1):

1/4+(5/8-3/10)×1/13=1/4+(25/40-12/40)×1/13=1/4+13/40×1/13=10/40+1/40=11/40原式=5/8×4/3+5/8×4/3=2×(5/8×4/3)=2×5/6=5/3

回答(2):

8/13×5/4-125%×3/13-3/13×5/4
=8/13×5/4-5/4×3/13-3/13×5/4
=(8/13-3/13-3/13)×5/4
=2/13)×5/4
=5/26