Posted by Patty on .
4/7 of a group of children are boys. If there are 18 more boys than girls, how many children are there altogether?

Math 5th 
Laurnece,
No of Girls
X x 4/7=18
(X x 4/7)/(4/7)=18(4/7)
X=18(4/7)
X=(18x7)/4 reciprocal
X=56/4
X=14
Total No of Children
18boys+14girls
18+14=32 Children 
Math 5th 
Sarah,
4/7= Boys, 3/7= Girls there are 1/7 more boys than girls. There are 18 more boys than girls.
1/7=18/X
(18)1/(18)7=18/X
18/126=18/X
X=126
72 boys + 54 girls = 126 total kids