Perform the indicated operation and, if possible, simplify.
-$\frac{7}{10}+\frac{5}{7}$
A) $\frac{99}{17}$
B) $\frac{99}{70}$
C) $\frac{12}{17}$
D) $\frac{6}{35}$

Question

Quizplus · Accepted Answer

To add fractions, you need a common denominator, which in this case is 70 (the least common multiple of 10 and 7). Convert each fraction: $\frac{7}{10} = \frac{49}{70}$ and $\frac{5}{7} = \frac{50}{70}$. Adding these gives $\frac{99}{70}$.

Perform the Indicated Operation And, If Possible, Simplify 710+57\frac{7}{10}+\frac{5}{7}107​+75​ A) 9917\frac{99}{17}1799​ B) 9970\frac{99}{70}7099​

Perform the Indicated Operation And, If Possible, Simplify $\frac{7}{10}+\frac{5}{7}$ A) $\frac{99}{17}$ B) $\frac{99}{70}$