Convert them to have the same denominator then subtract
Answer:
The first factor of the mass of an average grain of rock salt 120 is 40 times the first factor of the mass of an average grain of table salt 3.
Step-by-step explanation: Answer from edmentum Hope it helped!
Solve the rational equation by combining expressions and insulating the variable X .
all real numbers .
10.20*8= 81.60
10.20*.5= 5.10
add
81.60+5.10= 86.70
ANSWER: Peter pays $86.70 for the carpet