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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