Respuesta :

3/7 = 15/35
2/5 = 14/35
29/35 is used
6/35 is left
you can make the fraction to similar fractions you switch it to 15 over 35 and 14 over 35. you add 15 and 14 and get 29 over 35. 35 minus 29 is 6. the answer is 6 over 35.