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julia-pushkina [17]
3 years ago
8

How do you divide fractions

Mathematics
1 answer:
krek1111 [17]3 years ago
7 0
When dividing fractions, " flip " what u r dividing by, then multiply
Examples :
(2/3) / (4/5) = 2/3 * 5/4 = 10/12 reduces to 5/6

8 / (1/5) = 8 * 5/1 = 40

(1/3) / 7 = 1/3 * 1/7 = 1/21

just make sure u " flip " the number u r dividing by and not the other one
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If u = 2i - j; v= -5i + 4j and w = j find 4u (v -w).
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Answer:

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Explanation:

Given

u = 2i - j; v= -5i + 4j and w = j

Required

4u(v-w)

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v - w = -5i + 3j

Substitute

4u(v-w)

= 8i(-5i+3j)

= -40(i*i) [since i*i = 1]

= -40

Hence the required solution is -40

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Step-by-step explanation:

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