PLEAS HELL Anna bought 2 3/5lb of grapes and Sanika bought 1/2lb less than Anna. How many pounds. of grapes did they buy in all?

4 7/10

Step-by-step explanation:

Anna bough 2 3/5 pounds of grapes, and Sanika bought 1/2 pounds less. You first need to find how much Sanika bought. First find a common denominator. We can use 10. The numbers become 2 6/10 and 5/10 less. We now know that Anna bough 2 6/10, and Sanika bough 2 1/10. Therefore, they bought a total of 4 7/10's pounds.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

x=30

step-by-step explanation: