add the following fractions 7/20 + 3/5
To add the fractions 7/20 and 3/5, we need to have a common denominator. We can see that the least common multiple (LCM) of 20 and 5 is 20. Therefore, we need to rewrite both fractions with this denominator:
7/20 = 7/20 * 1/1 = 7/20
3/5 = 3/5 * 4/4 = 12/20
Now that both fractions have the same denominator, we can simply add the numerators together:
7/20 + 12/20 = 19/20
Therefore, 7/20 + 3/5 = 19/20.