In a fraction, the denominator tells us how many parts the whole is divided into, and the numerator tells us how many of those parts we're dealing with.
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We can read this fraction as four-fifths, four over five, or four divided by five.
The number above the bar is called the numerator, and the number below the bar is called the denominator.
Improper fraction: numerator is greater than or equal to denominator. (Ex. 3/2, 8/5)
Equivalent fractions: fractions that represent the same number. (Ex. 1/3=2/6=3/9)
Reciprocal: the multiplicative inverse of a number. For a fraction, it's obtained by "turning the fraction over". (Ex. 3/7 and 7/3)
Reciprocal: the multiplicative inverse of a number. For a fraction, it's obtained by "turning the fraction over". (Ex. 3/7 and 7/3)
Examples:
1/2 a half
1/2 a half
11/16 eleven sixteenth
1/3 a/one third
4 2/5 four and two fifths
1/4 a/one quarter
1/16 a/one sixteenth
236/407 two hundred thirty six over four hundred and seven
0.3 nought point three
0.527 nought point three seven five
8.9 eight point nine
1.5 one and a half
2.5 two and a half