Question

............. must be added to -1 by 4 to get 2 by 7​

Answer 1

Answer:

15/28

Step-by-step explanation:

Let the no. = y

y+(-1/4) =2/7

y-1/4= 2/7

y= 2/7+1/4

y = 8/28 + 7/28

y = 15/28

Answer 2

Answer:

$let \: x \: be \: added \: to \: \frac{ - 1}{4} to \: get \: \frac{2}{7} \\ \\ x + ( \frac{ - 1}{4}) = \frac{2}{7} \\ x = \frac{2}{7} + \frac{1}{4} \\ x = \frac{8 + 7}{28} \\ x = \frac{15}{28} \\ hence \: required \: answer \: is \: \frac{15}{28}$

hope it will help you