emathematics.net
Español
User: desconectar
 
Maths Exercices

Add and subtract mixed numbers with unlike denominators

ADDING OR SUBTRACTING MIXED NUMBERS WITH UNLIKE DENOMINATORS.

Step 1. Write equivalent fractions with the lowest common denominator.
Step 2. Add or subtract the numerators of the fractions.
Step 3. Add or subtract the whole numbers.
Step 4. Simplify

Add

The lowest common denominator is 15. Write equivalent fractions with the lowest common denominator, add the numerators of the fraction, add the whole numbers and simplify.


Subtract 4
Solution:  
 
 

Simplify your answer and write it as a proper fraction or as a whole or mixed number.