![]() For example 7, this would be done as follows: It is important to note that another way to subtract mixed numbers is to convert each mixed number into an improper fraction. Step 1: We will write equivalent fractions using the LCD, 12. Step 1: We will write equivalent fractions using the LCD, 21. Step 1: We will write equivalent fractions using the LCD, 4. We will need to borrow.Īnalysis: The fractional parts have unlike denominators. In order to subtract a larger unit from a smaller one, we will need to borrow.Īnalysis: We are subtracting a whole number from a mixed number.Īnalysis: We are subtracting a mixed number from a whole number. We need to regroup and borrow.Īnalysis: These mixed numbers have like denominators. ![]() ![]() Now that we have rewritten three and one-fourth as two and five-fourths, we can subtract these mixed numbers.Īnalysis: This problem is asking us to subtract mixed numbers with like denominators. Let's use this fact and fraction circles to help us convert one whole into 4 fourths so we can regroup and borrow. Recall that a mixed number consists of a whole-number part and a fractional part. For example, if you were subtracting 31-19, you would borrow one ten and then regroup it as 10 ones in order to subtract. However, how do we subtract three-fourths from one-fourth? In order to subtract a larger unit from a smaller, we will need to borrow. In the last lesson, we learned that to add mixed numbers, add the whole numbers and add the fractions separately: (whole + whole) + (fraction + fraction). A similar procedure applies to subtracting mixed numbers. ![]() How much farther did Carlos run yesterday than the day before?Īnalysis: This problem is asking us to subtract mixed numbers with like denominators. Example 1: As part of his marathon training, Carlos ran three and one-fourth miles yesterday and one and three-fourths miles the day before. ![]()
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