7. So we multiply 7 by 3 and get 21 then we multiply 2 by 9 and get 18 next we give both terms new denominators- 9 multiply by 3=27 so now our fractions should look like this: 21/27 18/27 since our denominators math we can subtract the numerators 21-18=3 so the answer is 3/27 Simplified the answer is....... 1/9
Hope this helped a lot I can help with other questions too!!
