简算.3/4×4/5÷3/4×5/4 8/13÷7+1/7×6/13 (3/5+1-1/10)

问题描述:

简算.3/4×4/5÷3/4×5/4 8/13÷7+1/7×6/13 (3/5+1-1/10)

3/4×4/5÷3/4×5/4 =3/4÷3/4×4/5×5/4=1×4/5×5/4=1×1=1
8/13÷7+1/7×6/13 =8/13×1/7+1/7×6/13=1/7×(8/13+6/13)=1/7×14/13=2/13