Answer:
The answer is C.
negative 13 and 13 over 35
Eliminating a negative and changing our operation.
=5 4/7 − 2 2/5
Rewriting our equation with parts separated
=5 + 4/7 − 2 − 2/5
Solving the whole number parts
5−2=3
Solving the fraction parts
4/7 − 2/5 = ?
Find the LCD of 4/7 and 2/5 and rewrite to solve with the equivalent fractions.
LCD = 35
20/35 − 14/35 = 6/35
Combining the whole and fraction parts
3 + 6/35 = 36/35
Solution by Formulas
First:
Convert any mixed numbers to fractions.
Then your initial equation becomes:
39/7 + −12/5
Applying the fractions formula for addition,
=(39×5)+(−12×7)/7×5
=195 + −84/35
=111/35
=36/35