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2174

ARITHMETIC

A fraction whose numerator is greater than its denominator is called an improper fraction, or better, a fractional number. As 3/2, 7/5, 12/11.

A mixed number is a number consisting of an integer and a fraction.

As 3i/2, 7i/8.

1 equals how many 4ths, 8ths, 12ths, 16ths? 1/2 equals how many 4ths, 8ths, lOths? *4 equals how many 8ths, 12ths, 16ths ?

Change % to 8ths.

1—2              8 .16.

41$              £         8

i

4

4 = A



Change f to 12ths

Change | to 24ths            III = If

To change a given fraction to an equivalent fraction in larger terms, multiply both terms of the fraction by the number which will change the denominator of the given fraction to the denominator of the required fraction.

The multiplier is found by dividing the required denominator by the given denominator.

Change

i to 12ths               | to 32nds                 f to 60ths

f to 24ths              '•& to 48ths                & to 50ths

f to 25ths               f to 36ths                T% to 39ths

How many 18ths in f, f, f, 3, 21, If?

How many 12ths in -fc f, f? f, 4, 8, 2J?