Adding and subtracting mixed numbers

1. ADDING AND SUBTRACTING
MIXED NUMBERS

2.  add or subtract the whole numbers
 then, find the LCD or Least Common Denominator
 divide the LCD and the first denominator and
multiply the quotient to the numerator and do
the same to the second fraction
 reduce the fraction to its lowest form if possible
Rules in Adding and Subtracting Mixed
Numbers with Different Denominators

3. 1.) 3
1
2
+ 2
1
3
= 3 + 2 +
3+2
6
= 5
5
6
2.) 9
3
4
− 5
2
3
= 9 − 5 +
9−8
12
= 4
1
12
Examples:

4. 1. )
1
4
+
2
5
2. )
3
4
−
1
3
3. )
1
2
−
2
7
4. )
1
6
+
1
2
5. )
2
3
−
1
6