write 7/10 as a sum of fracctions two different ways
4/10+3/10 1/2+1/51/2 is equal to 5/10 and 1/5 is equal to 2/10. Just add the numerators and keep the denominators the same. 5+2=7 and 4+3=7.
You can put 1/9+9/1OrAnt thin along those lines