What fraction must be subtracted from the sum of 13/6and 31/7 to give 13/4

(13/6-31/12)-x=13/4

-5/12 - x = 13/4

x = -5/12 - 13/4

x = -11/3

Step-by-step explanation:

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation: