四十二分之九乘以十三分之七加五分之三等于多少

2024-12-11 17:27:10
推荐回答(4个)
回答1:

9/42X7/13+3/5
=3/26十3/5
=93/130

回答2:

9/42*7/13+3/5
=(9*7)/(42*13)+3/5
=3/26+3/5
=(3*5+3*26)/(26*5)
=91/130

回答3:

9/42×7/13+3/5
=3/2×1/13+3/5
=3/26+3/5
=3×(1/26+1/5)
=3×(5/130+26/130)
=93/130

回答4:

9/42 * 7/13 +3/5
=9/(6*13) +3/5
=3/26+3/5
=15/130+78/130
=93/130