You can put this solution on YOUR website! Let x=number of girls
The ratio of boys to girls is 7 to 8 means that for every 7+8=15 childen 7/15 are boys and 8/15 are girls. Soooo
(8/15)*120=x
x=64-----number of girls
120-64=56------number of boys
CK
56/64=7/8
Hope this helps---ptaylor