Question

Subtract the sum of 1/4 and -3/8 from the additive inverse of -3/8 - (-2/7)

Answer 1

Answer:

$\frac{3}{14}$

Step-by-step explanation:

$\frac{-3}{8} - \frac{-2}{7}$

LCM of 8 and 7 is 56

$\frac{(-3 * 7) - (-2 * 8)}{56}$ = $\frac{-21 - (-16)}{56}$ = $\frac{-21 + 16}{56}$ = $\frac{-5}{56}$

Additive inverse of $\frac{-5}{56}$ is $\frac{5}{56}$

$\frac{1}{4} + \frac{-3}{8}$

LCM of 4 and 8 is 8

$\frac{(1 * 2) - 3}{8} = \frac{2 - 3}{8} = \frac{-1}{8}$

$\frac{5}{56} - \frac{-1}{8}$

LCM of 56 and 8 is 56

$\frac{5 - (-1 * 7)}{56} = \frac{5 + 7}{56} = \frac{12}{56} = \frac{3}{14}$  

Answer 2

Answer:

Step-by-step explanation:

Step-by-step explanation:

LCM of 8 and 7 is 56

=  =  =

Additive inverse of  is

LCM of 4 and 8 is 8

LCM of 56 and 8 is 56