Respuesta :
Answer:
First 6/7 and 2/5 have to have the same denominator so find a common multiple
7 14 21 28 35 42 49
5 10 15 20 25 30 35
7 and 5 both share 35
So then multiple 6/7 x 5/5
6 x 5 = 30 and 7 x 5 = 35 30/35
2/5 x 7/7
2 x 7 = 14 and 5x 7=35
14 /35
Then subtract
30/35 - 14 /35
30-14 = 16
So your answer is 16/35
Answer:
16/35
Step-by-step explanation:
We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.
So we multiply 6 by 5, and get 30.
Then we multiply 2 by 7, and get 14.
Next we give both terms new denominators -- 7 × 5 = 35.
So now our fractions look like this:
30/35 − 14/35
Since our denominators match, we can subtract the numerators.
30 − 14 = 16
So the answer is:
16/35
hope this helps....