A ruler
3/8
1/2 cups.
Math is related to fractions. if you look in a math book or just online then one of the math topics is fractions. You learn how to divide, multiply, add and subtract, simplify and more about fractions and what to do with them.
multiplying rational expressions means multiplying two alg. rxpressions that look like fractions, Just like normal, multiply numerators and multiply denominators then reduce. Division, just like regular fractions means to invert the divisor and the multiply (as above)
They can all look like fractions.
A ruler
It will probably look like a table of figures.
3/8
1/2 cups.
3/10
you will see a small metal post every half km with consecutive numbers on them
Four over three. 4/3
Join up the hour-markers on a clock face and you will have a dodecagon - a 12 sided polygon.
Very much like it is today, but with 48 stars on the flag and no interstate freeway system.
They are equivalent to 3/4 and 1/2 respectively
You look for a common denominator; convert the fractions to equivalent fractions with the denominator you found; then you do the addition itself.