How do you evaluate #8\frac { 1} { 12} + 3\frac { 7} { 12} #?

1 Answer
Apr 12, 2017

The result is #11 2/3#. See explanation.

Explanation:

To add mixed numbers we can add whole parts and fractions sepperately.

#8 1/12 + 3 7/12=11+1/12+7/12#

To add the fractions with the same denominators you add the numerators.

#1/12+7/12=8/12#

Both numerator and denominator is divisible by #4#. So we can reduce the fraction by #4#:

#8/12=2/3#

So the result is:

#11 2/3#