文档介绍：分数乘法计算题练****br/>1×18 15× 2× ×24
×21 56× × × ×
× × × 15× ×12
7× × 8× ×10 ×24
× × × 1×8 1×3
×× ×- 1×21
×1 ×1 1×1×2
1×× 2×× 3×22 ×5 ×2 14×4 2×12
×7 ×
150× ×5 27× ×15 19×
72× × × × ×24
48× × 28× 8× ×
1× 1× ×1 × 2 3× 2×
× 1 ×1 (+)×12 × 101 1×8+×8
×6+6× 2 ×5 ×2 × 4×
1× 32 × 3 (-)×50 4× 1× 2×6×
×× × ×× ×× 108×
× × ×120 × ×
+ × 2× 3 ×2 ×2
1× 4× 2× 2×1 2×1
3× ×1 2×1× 3× 4 × 2×3×
×× ×1×1 2×12
3×14 5×4 7×2 3×4
7 ×3 ×12 ×6 ××35 ×46