Answer:
Addition
2/5+3/5
Add the numerator
2+3=5
answere-5/5
Multiplication
2/7, 8/4
First simplify-4/7
Subtraction
2/6-2/4
First take the Lcm=12
2-2/12
Answere-0/12
add the top number not bottom
Explanation:
the bottom number stays the same
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