| Term | Definition |
|---|
| When you add or subtract fractions, you need... | common denominators. |
| Is the denominator the top or bottom of the fraction? | bottom |
| You are adding 2 fractions. You have a common denominator. What do you do to the denominator? | Keep it |
| You are adding 2 fractions. You have a common denominator. What do you do to the numerators? | Add them |
| You are multiplying 2 fractions. You have a common denominator. What do you do to the denominator? | Multiply the denom |
| You are mult 2 fractions. You have a common denominator. What do you do to the numerators? | Multiply the numerators |
| You are dividing 2 fractions. What do you have to do? | Change it to multiplication and use the reciprocal of the SECOND fraction |
| What is the common denom for ¾ and ½? | 4 |
| How do you get a common denom for ¾ and ½? | You multipliply the ½ (top and bottom) by 2 so that the bottom = 4 |
| Factors are... | smaller numbers that mult to make bigger numbers |
| multiples are... | bigger numbers that are created by mult smaller numbers |
| The factors of 12 are... | 1x12, 4x3, 2x6 (1,2,3,4,6,12) the numbers that make 12 |
| What are the multiples of 12? | 12x1 = 12, 12 x 2 = 24,... (12, 24, 36, 48, 60...) (The numbers that 12 can become) |
| Only cross multiply then there is.... | an equal sign |
| Do you cross multiply to solve this: ¾ x ½ ? | No |
| Do you cross multiply to solve this: m/2 = ¼ ? | Yes |
| Only cross multiply when you "cross... | the bridge" (equal sign) |
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