Đáp án+Giải thích các bước giải:
`\text{a)-----------|----|----|----|----|----|------------------->}`
`\text{ -1 -4/5 0}`
b)`3/2=6/4`
`\text{---|------------------|----|----|----|----|------------------------------>}`
`\text{ 0 1 5/4 6/4 2 }`
c)`-2/3=-10/15`
`-4/5=-12/15`
`-1=-15/15`
`\text{-|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|------------->}`
`\text{-1 -12/15 -10/15 0}`
d)`3/4=45/60,4/5=48/60,5/6=50/60`
`1=60/60`
`\text{-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-|-------->}`
`\text{0 3/4 4/5 5/6 1}`
