Answer:
-25/12
Step-by-step explanation:
first, you need a common denominator. in this case, it's 12.
-1/3=-4/12
-7/4=-21/12
and then you add
-4+-21=-25
so -25/12 is your answer
The only way to do that is with +7 and -7 .
Answer:

Step-by-step explanation:

Answer:
See work for 3 answers
Step-by-step explanation:
You can add the exponents

also could be stated as

numerical value
6.87194767 × 
Rewrite the decimal number as a fraction with 1 in the denominator
0.225=0.22510.225=0.2251
Multiplying by 1 to eliminate 3 decimal places, we multiply top and bottom by 103 = 1000
0.2251×10001000=2251000