Question

Which Rational Number Must Be Added To 3/7 To Get - 3/4

Answer 1

Step-by-step explanation:

Add x to 3/7 to get -3/4.

x +3/7 = -3/4, or

28x + 12 = -21, or

28x = -33, or

x = -33/28.

Check: 3/7 -33/28 = 12/28 - 33/28 = -21/28 = -3/4. Correct.

Answer 2

Answer:

-1.17

Step-by-step explanation:

3/7 +x= -3/4

x=-3/4 -3/7

Take L.C.m of 4 and 7 and answer is 28

x= -(3*7)/28-(3*4)/28

x=(-21-12)/28

x=-33/28

x=-1.17