Carter has 60 balloons. 4/12 of the balloons are black, and 3/12 of the balloons are white. The rest of the balloons are red. Which series of calculations shows how many res balloons Carter has?

Total balloons = x

x=60

4/12 x are black

3/12 x are white

x= 12/12 x

Rest of the balloons = 12/12 x - 7/12x = 5/12 x

If x = 60

1/12 x = 60/12

= 5

1/12 = 5

Red Balloons = 5/12

1/12 (5) * 5/12 = 25 balloons

5/12 = 25

There are 25 red balloons

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