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Mathematics 20 Online
OpenStudy (ebonyserrano):

ina's penny bank is 1/4 full. After she adds 400 pennies, it is 2/3 full. How many pennies can Jina's bank hold?

OpenStudy (ebonyserrano):

@MiaSan5653

OpenStudy (miasan5653):

See if you can get have fractions with equal denominators yourself this time

OpenStudy (ebonyserrano):

1/2

OpenStudy (reganmckay32):

It should not be 1/2. Get common denominators by finding the lowest common multiple.

OpenStudy (ebonyserrano):

1

OpenStudy (reganmckay32):

Do you know how to get a common denominator?

OpenStudy (miasan5653):

To get the lowest common denominator, you have to multiply them by each other. When you do this remember to multiply both parts of the fraction that you are doing. For instance with 2/3, you multiply the 2 by 4 and then the three by 4

OpenStudy (ebonyserrano):

2*4=8 3*4=12

OpenStudy (miasan5653):

so that fraction is 8/12 do the same thing for the other but use 3 instead of 4

OpenStudy (ebonyserrano):

12/12

OpenStudy (reganmckay32):

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