Add and Subtract Fractions and Mised ou already know how to add similar fraction in lower grade.
Fractions with and without
Regrouping
Lesson
have common denominator, you just add the numerato
e sum over the common denominator and write the lowest
ne, learn more about addition and subtraction of fraction
you are expected to add and subtract fractions and mixe
and without regrouping

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.