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A Survey of Mathematics Related Topics: Pg. 518 - 519, All Three Yellow Boxes This activity allows the user to practice simplifying fractions, converting fractions to decimals, and converting decimals to percents, as well as, multilpying decimals, percentages and fractions. Fraction Four is similar to Connect Four, and is designed for two players. The goal is to have four pieces of the same color connected either horizontally, vertically, or diagonally. One player uses red pieces, while the other player uses blue pieces. To earn a piece, you need to answer a fraction-related question. Remember the numerator is the number on the top of the fraction and the denominator is the number on the bottom. To simplify fractions, you must factor the numerator and denominator completely. Then you cross out the numbers that appear in both the numerator and the denominator. If all of the factors are cancelled in the numerator, then replace it with 1 (which is a factor of any number). Likewise for the denominator. Here is an example:
 To convert fractions to decimals, just divide the numerator by the denominator. To multiply fractions you just multiply the numerator of the first fraction by the numerator of the second fraction, then divide this result by the denominator of the first fraction multiplied by the denominator of the second. Here is an example:
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