Share Extra Practice: Adding & Subtracting Fractions
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2/8 + 1/6
10/24
3/4 + 8/12
1 and 5/12
1/2 + 1/8
5/8
9/12 + 4/6
1 and 5/12
5/8 + 1/3
23/24
1/2 – 1/6
2/6 (or 1/3)
3/8 – 1/10
11/40
1/4 – 2/10
1/20
4/8 – 2/10
1 and 9/20
4/5 – 1/2
3/10
Explain how to convert a mixed number to an improper fraction.
Multiply the whole number by the denominator. Add that number to the numerator. Write that sum on top of the original denominator.
Explain how to convert an improper fraction to a mixed number.
Divide the numerator by the denominator. Write down the whole number part of the quotient. Take the remainder and write it over the original denominator.
Explain how to find the least common multiple (LCM). Hint: To have like denominators, you need to find the LCM first!
List the multiples of each number. The smallest multiple both numbers have in common is called the Least Common Multiple (LCM).
