Question

How do you solve the problem 9/10-1/3

Answer 1

`(9)/(10)- (1)/(3)= \\ \\ (9*3)/(10*3)= (27)/(30) \\ \\ (1*10)/(3*10)= (10)/(30) \\ \\ (27)/(30)- (10)/(30)= (17)/(30) \\ \\ Answer:\boxed{ (10)/(30)} \\`

Answer 2

you must make there be a common denominator(lower number) so 9/10*3(otherwise known as 3/3)=27/30 1/3*10(otherwise known as 10/10=10/30 now we do the math 27/30-10/30=17/30 when you add or subtract fractions you always find a common denominator then only add or subtract the numerator (top number)