How do you evaluate #(3\frac { 1} { 4} - 5\frac { 2} { 5} ) \div - 1.5#?
1 Answer
43/30
Explanation:
First we should rewrite all mixed numbers and decimal numbers as fractions.
Now to subtract the two fractions in the brackets, we need to give them a common denominator by multiplying both the numerator and denominator by the other fraction's denominator.
Now we can subtract the two fractions.
When dividing by a fraction it is the same as multiplying by its reciprocal.
Now we can simplify by dividing the numerator and the denominator by
When dividing two negative numbers by each other they will yield a positive quotient this is because out of two negative numbers you can factor out