1. Subtracting Mixed Numbers
with
Regrouping

2. Steps for solving subtraction of mixed numbers with unlike denominators:
Find the LCD
Write equivalent fractions
Subtract the fractions, regroup(borrow) if necessary, then subtract the whole numbers
Simplify the answer

3. LowestTerms
LCD
Problem = Equivalent Fraction 3 5 4 5 - 3 2 5

4. 4 5 4 4 4 4 3 1 4 = = LCD + – – Problem = Equivalent Fraction
LowestTerms
LCD
Problem = Equivalent Fraction 4 5 4 4 = + 4 4 – – 3 1 = 4

5. LowestTerms
LCD
Problem = Equivalent Fraction 3 5 8 13
x 1=
8 – 8
4-4,8 3 4 = = + 8 8 8
x 1= 6
x 2= 6 2 2
LCD = 8 – = 8 – 8
x 2= 7 1 8