2/5x()=1/3+()=2.75-()=9/8x()=4/3x()=1
问题描述:
2/5x()=1/3+()=2.75-()=9/8x()=4/3x()=1
答
2/5×5/2=1/3+2/3=2.75-1.75=9/8×8/9=4/3×3/4=1
2/5x()=1/3+()=2.75-()=9/8x()=4/3x()=1
2/5×5/2=1/3+2/3=2.75-1.75=9/8×8/9=4/3×3/4=1