2/7x/1/2=3/5
问题描述:
2/7x/1/2=3/5
答
2/7x÷1/2=3/5
2/7x=6/5
x=6/5÷2/7
x=21/5
2/7x/1/2=3/5
2/7x÷1/2=3/5
2/7x=6/5
x=6/5÷2/7
x=21/5