Question

find the sum of -48/4 and 168/12​

Answer 1

Answer:

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(-48/4, 168/12) = 12

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(−484×33)+(16812×11)=?

Complete the multiplication and the equation becomes

−14412+16812=?

The two fractions now have like denominators so you can add the numerators.

Then:

−144+16812=2412

Since 24 divided by 12 equals 2 then,

2412=2

Therefore:

−484+16812=2