7 1/5 - 2 3/5 =
36/5 - 13/5 =
23/5 or 4 3/5 <==
The answer is 1/16 i think. Hope this helps! :)
If you want to increase something by 31% then...
100%+31%=131% or 1.31
you multiply it by 131% or 1.31. So for 429 grams...
429*1.31=561.99grams
If you increase 429 by 31%, you get 561.99 grams
Answer=561.99 grams