Fractions Test Tips

REMEMBER THE FOLLOWING TIPS AND INCLUDE ON YOUR STUDY SHEET.


B - Brackets


E - Exponents


D- Dividing
M- Multiplying * Do these operations from left to right, depending on how they are presented.


A- Adding
S- Subtracting * Do these operations from left to right, depending on how they are presented.




DIVIDING FRACTIONS - "Flip and Multiply (the second fraction in the equaition) by the reciprocal
ex: 1/2 ~ 3/4 = 1/2 x 4/3           ***FYI  ~ means divide...


MULTIPLYING FRACTIONS - Just multiply numerator x numerator and
denominator x denominator


ADDING AND SUBTRACTING - YOU CHANGE THE FRACTIONS SO THEY HAVE THE SAME DENOMINATOR so... you need to create EQUIVALENT FRACTIONS (multiply the same number with the denominator and numerator...


MIXED NUMBER AND IMPROPER FRACTIONS


Change the following mixed number to an improper fraction.
1 2/3 (3 X 1 + 2) = 5/3




Change an improper fraction to a mixed number


Denominator divided into the Numerator.


8/5 8 divided by 5 = 1 and 3/5 (and it's in lowest terms)

WORD PROBLEMS HINTS FOR PROBLEM SOLVING...

Addition
in all, total, sum, both, combined, all together, how many, perimeter

Subtraction
fewer, left, how much, change, how many more, how much more, less, difference, minus, remains

Multiplication
total, in all groups (read and look for concepts that relate to grouping), times, twice, rate, area

Division
how many each, how many groups, divided equally (read and look for concepts that mean dividing something into equal groups)

Ex #11. Regina has wet weather on about 3/10 of the days in a year (365 days in year). It has wet weather on about four times as many days as it has fog. On what fraction of days of the year does Regina have fog?
  Numbers you will use: 3/10 and  4 times

Note operation words "as many" - means division.
3/10 ~  4/1 = 3/10 x 1/4 = 3/10  (remember the question only asks what fractin of the days are fog.)