{7^(-1)-8^(-1)} - {3^(-1)-4^(-1)}
Answers
Answer: -11/168
Logic: A positive exponent tells us how many times to multiply a base number, and a negative exponent tells us how many times to divide a base number.
Basically the numbers on numerator become the denominator and vice versa.
= { 1/7 - 1/8 } - { 1/3 - 1/4 }
= { 8-7/56 } - { 4-3/12 }
= 1/56 - 1/12
= ( 1 x 3/56 x 3) - ( 1 x 14/ 12 x 14)
= 3/168 - (14/168)
= -11/168
Answer:
Answer: -11/168
Logic: A positive exponent tells us how many times to multiply a base number, and a negative exponent tells us how many times to divide a base number.
Basically the numbers on numerator become the denominator and vice versa.
= { 1/7 - 1/8 } - { 1/3 - 1/4 }
= { 8-7/56 } - { 4-3/12 }
= 1/56 - 1/12
= ( 1 x 3/56 x 3) - ( 1 x 14/ 12 x 14)
= 3/168 - (14/168)
= -11/168
Step-by-step explanation: