Show 2 different ways to subtract mixed numbers:
First Question:
3 1/4 - 1 1/2 =?
You have to convert these fractions into improper fractions because if you subtract these without converting, you will end up with a negative answer.
First you have to find the LCD (lowest common denominator)
Now that we have a common denominator, we multiply the whole number with the denominator and add the left overs
Now we have to do is subtract the fractions
The answer is still improper, so all we have to figure out is how many 4's go into 7
And now the answer is 1 3/4
Second Question:
30 1/6 - 10 3/4 =?
30 1/6 - 10 3/4 =?
First you find the LCD again
Now we convert 30 2/12 to 29 4/12
Now we have to subtract both fractions
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