Question

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

Answer 1

$\frac{9}{10}- \frac{1}{3}= \\ \\ \frac{9*3}{10*3}= \frac{27}{30} \\ \\ \frac{1*10}{3*10}= \frac{10}{30} \\ \\ \frac{27}{30}- \frac{10}{30}= \frac{17}{30} \\ \\ Answer:\boxed{ \frac{10}{30}}$

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)