分数解方程练习题多,好,棒,快.

χ×5/8=1/12 χ×8=4/5 χ×5/4=5/8 χ×3/5=45
χ=2/15 χ=1/10 χ=1/2 χ=75
χ×2/3=75 χ×4/15=8 7χ÷1/2=3/5 9/8÷χ=1/4
χ=225/2 χ=30 χ=3/70 χ=9/2
χ×5/8=1/12 χ×8=4/5 χ×5/4=5/8 χ×3/5=45
χ=2/15 χ=1/10 χ=1/2 χ=75
χ×2/3=75 χ×4/15=8 7χ÷1/2=3/5 9/8÷χ=1/4
χ=225/2 χ=30 χ=3/70