5⼀12+7⼀12×4⼀7,计算怎么写?

2025-06-25 19:45:29
推荐回答(1个)
回答1:

解:5/12+7/12×4/7等于( 3/4 ),【即等于0.75】
∵已知需求出5/12+7/12×4/7等于多少
∴5/12 + 7/12 × 4/7
= 5/12 + 1/3
= 5/12 + (1×4)/(3×4)
= 5/12 + 4/12
= 9/12
= 3/4
= 0.75
答:5/12+7/12×4/7等于3/4,【即等于0.75】