Question

you know that 1/7=0.142857. can you predict what the decimal expansion of 2/7,3/7,4/7,5/7,6/7 are without actually doing the long division ?if so, how?​

Answer 1

Given ,

$\frac{1}{7} = 0.142857$

To obtain the decimal expansions of $\frac{2}{7}$ , we just need to multiply 2 with the decimal expansion of $\frac{1}{7}$ , giving ,

$0.142857 \times 2 =0.285714$

Similarly the others can be gound , by multiplying 3 ,4 , 5 , 6 and so on ...

Answer 2

Step-by-step explanation:

see the attachment. . . . ❄❄❄