# Unit 5 Choice Board

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#### Storyboard Text

• Hi, it's me, Rishi. Today I will show you how to add and subtract fractions with unlike denominators.﻿
• First, you have to make the two denominators from unlike to like.   In my example,   I will use   1/5+1/6.
• So,   first, we need to find a common denominator. In this case, the denominator would be 30.
• You would also have to make the numerators larger, because you made the denominator larger so, you have to make the numerator fit. So, you would multiply the numerator by the number you would use to make the common denominator.   In this case, the numerators would be 6 and 5.
• Finally, you would add the numerators and keep the denominator the same. So, you would get 11/30!
• In subtraction, you would do the same thing, but instead of adding, you ﻿subtract the numerator.
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