You have to find a common denominator for the fractions. 5 and 7 both go into 35 which is the lowest common multiple of 5 and 7. 2/5 is multiplied by 7/7 and 3/7 is multiplied by 5/5. Then add the two fractions. So 29/35 parts are finished of the total number of bracelets.
ok so. A restaurant chef ordered product to make a stew. He ordered 4 pounds of beef at 9.25 per pound, 6 pounds of potatoes at $6.75 a pound, and 5 pounds of carrots at $9.80 per pound. If the stew serves 30 people and he charges $12.50 per serving, how much profit will he make?
The odds FOR getting a 2, 4, 5:
There are 3 ways of getting a 2, 4, or 5. There are also 3 ways of NOT getting a 2, 4, 5 (namely rolling a 1, 3, or 6). That means the odds FOR would be 3:3 = 1:1.
There are 3 ways of NOT getting a 2, 4, or 5 (again rolling a 1, 3, or 6). There are also 3 ways of getting a 2, 4, 5. That means the odds AGAINST would be 3:3 = 1:1.
