Subtract the fractions below, and express the answer in its lowest terms. $\frac { 8 } { 7 } - \frac { 7 } { 7 }$
A) $\frac { 1 } { 7 }$
B) $\frac { 7 } { 14 }$
C) $\frac { 8 } { 7 }$
D) none of these

Question

Quizplus · Accepted Answer

The second fraction is equal to $1$ since $\frac{7}{7}=1$. So, we have $\frac{8}{7}-1=\frac{8}{7}-\frac{7}{7}=\frac{1}{7}$. To simplify this fraction, we note that $1$ can be written as $\frac{7}{7}$, so we have $$\frac{8}{7}-\frac{7}{7}=\frac{8-7}{7}=\frac{1}{7}.$$ Thus, our answer is $\frac{1}{7}$, choice $	extbf{(A)}$.

Subtract the Fractions Below, and Express the Answer in Its 87−77\frac { 8 } { 7 } - \frac { 7 } { 7 }78​−77​

Subtract the Fractions Below, and Express the Answer in Its $\frac { 8 } { 7 } - \frac { 7 } { 7 }$