480,056 views
9 votes
9 votes
Leslie has 3 pounds of peanuts, she uses 1 7/8 pounds to make trail mix. How many pounds does she have left?

User Kermit The Frog
by
3.0k points

1 Answer

8 votes
8 votes

What Leslie has is 3 pounds of Peanuts and she has used a fraction of it. That fraction is 1 7/8. To find out how many pounds more she has left, its a matter of subtracting 1 7/8 from 3 whole.

Let the leftover be called x, and you now have;

x = 3 - 1 7/8

Converting the other number to an improper fraction you now have

x = 3 - 15/8

x = 3/1 - 15/8

By using the LCM of both denominators which is 8, the expression now becomes,

x = 24/8 - 15/8

x = 9/8

x = 1 1/8

Les

User IMHO
by
2.9k points