Question

Jane's penny bank is 1/3 full. After she adds 480 pennies, it is 7/9 full. How many pennies can Jane's bank hold?

Answer 1

980

Explanation:

7/9-1/3=480

4/9=480

9/9=?

• 9/9×9/4×480
• 9/1×120
• = 980

Answer 2

1080

Explanation:

We take x to be the number of pennies in the bank at first which filled the bank by a ¹/3

¹/3=×

⁷/9=×+480

⅓ multiply by 3 with both the numerator and denominator to get 3/9

7/9-3/9=4/9

4/9=480

If 4/9=480 what of 9/9

9/9×480÷4/9

Reciprocate 4/9

9/9×480×9/4=1080