1
2
3
分数乘法计算练习题
一、分数与整数相乘。
5611
×4= 26× = ×5= 121315
1323
24× = ×7= ×20=
482110
479 ×15= ×12= 16× = 251820
131410
17× = ×30= ×121=
511511
16914
×54= 11× = ×20= 272215
18524 ×38= 36× = 100× = 192725
二、分数和分数相乘。(注意:能约分的先约分,再计算。)
236758 × = × = × = 5478915
97121549 × = × = × = 11152516510
21575427 × = × = × = 316821916
1425203718 × = × = × = 1521278935
62217451911 × = × = × = 111527683338
817137827 × = × = × = 17202126940
13389501217 × = × = × = 193910633436
4
三、分数乘、加、减混合。
750241553254 ×( - ) × ×14 × +1 + × 166375166
914 -527183869 ×35 1 -19 ×45 15
四、分数乘、加、减简便运算。
1315 ×726 ×5 (58 +1112 )×24
(56 -49 )×36 99× 9798
67847 ×12×12 15 ×7 ×316
38 ×712 +512 ×38 517 ×7749 +9 ×17
5
4(5-513 ) 312151991 ×7+813 914 ×17
18 ×14 913 -7918 ×13 911 ×97×119 1225 ×15-7
25 ×15 ×