What is the answer I have to grade my childs work the question is: Find the sum using fraction bars or a paper and pencil. Write your answer in simplest form. 2/5+ 1/10

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Ответ:

angeline2004

05.11.2021

Mathematics

Step-by-step explanation:

for A

$an = a1 + (n - 1)d \\ d = a2 - a1 \\ d = 3 - 1 = 2 \\ an = 1 + (n - 1) \times 2$

for B

$an = a1 + (n - 1)d \\ d = a2 - a1 \\ d = 9 - 1 = 8 \\ an = 1 + (n - 1) \times 8$

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