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Mathematics 10 Online
OpenStudy (anonymous):

2/9+-43/72=

jhonyy9 (jhonyy9):

so do you know how add two fractions ?

OpenStudy (anonymous):

a lil

OpenStudy (anonymous):

45/81

jhonyy9 (jhonyy9):

why 81 ?

jhonyy9 (jhonyy9):

for 9 and 72 what is the common denominator ?

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