THE NEW STUDENT'S REFERENCE WORK
2175
Have the child fill in the missing numerators, and prove the first four of each example by a drawing.
11 ______ J> ______ O u A ___ r
• "2 ' ~y ------ ir - • ~g" " i A ——— "T"'2'
2 •}• • = = = =
q .3.__ __ __. __ __
6 ~nr TIT inr' TOT 3 o
- ±0 fj- -g- -g- 1 g" "Y^ ~1 "g"
5. |=T!r = Ti.==Tj==:T(r==.i1g.
The £eas£ common denominator of two or more fractions is the L. C. M. of their denominators.
Change to equivalent fractions having a least common denominator.
i> i> I i? I? T% I? i? 1
f> f> A f> t> i if? W? -J? i
I, f, f, T7s f A, f f, A. t» I
To change a given fraction to an equivalent fraction in smaller terms, divide both terms of the fraction by the greatest common factor.
- IJ = i *I1=*
Reduce to lowest terms:
f, A, H, A, tt, If, A, Afo H> **> -m
To 6a memorized. To multiply or divide both terms of a fraction by the same number does not change its value. Multiply when changing to higher terms; divide when changing to lower terms.
To change a mixed number to an equivalent fractional number.
2f is a mixed number. First change the integer 2 to 6ths, making 12 6ths; to this add the 5 6ths, making ^-.
Change to equivalent fractional numbers:
4| 16| 15f 92f 86f
12| 25| 16^ 18f 55f
To change a fractional number to an integral or mixed number, divide the numerator by the denominator.
Change to integral or mixed numbers:
V, ¥, V, ¥, fl> -V-, «, W
