Answer:
year boy built an igloo =3/4
year3 girl built same igloo=3/7
To find out all together how much have built =3/4+3/7
if we take alceam
4×7=28
in fraction down we need to make 28
so 3/4 we multiply by 7 and 3/7we multiply by 4
3×7/4×7+3×4/7×4=21/28+12/28=21+12/28
33/28
to find out we divide fraction we will know what left .
1,5/28
5is left.
