FRACTIONS (CONVERTION FROM PERCENTAGE TO DECIMAL AND DECIMAL TO FRACTION) See also FRACTIONS WHOLE NUMBERS ALGERAIC FRACTIONS ALGEBRAIC EXPRESSION MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS
FRACTIONS (TYPES OF FRACTIONS) See also WHOLE NUMBERS ALGERAIC FRACTIONS ALGEBRAIC EXPRESSION MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS APPROXIMATION AND ESTIMATION
FRACTIONS (TYPES OF FRACTIONS), RATIO AND PERCENTAGES See also HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR WHOLE NUMBER AND DECIMALS NUMBERS SIMPLE EQUATIONS INVOLVING FRACTIONS MEASURE OF CENTRAL TENDENCY Data Presentation
Fractions and Percentages A fraction can be converted to decimal by dividing the numerator by its denominator. It can be changed to percentage by simply multiplying by 100. Example 5.1 Change 3/8 into a decimal and percentage Convert 0.145 to percentage Solution 1) 3/8 = 0.375 in decimal 3/8 x 100% = 37.5% 2) 0.145×100=14.5% Example 5.2 To change percentage to decimal fraction, simply divide by 100 and then convert to decimal fraction. E.g. convert 92% to decimal Solution 92 100 920 900 200 200 =0.92 Example 5.3 Change the following to percentages (a) 0.125 (b) 0.002 Solution (a) 0.125×100% = 12.5% (b) 0.002 = 0.002×100% = 0.2% Change the following to decimal fractions (A) 45 % ( b) 8/3% Solution 45/100=0.45 8/3= 8/3 ÷100/1= 8/3 x 1/100 = 8/300 = 4/150 = 2/75 0.02666 75 200 150 500 450 500 450… Read More »FRACTIONS, RATIOS, DECIMALS AND PERCENTAGES
Content
(a.) Letters for numbers
(b.) Algebraic fractions
(c.) Simplification of algebraic expressions
(d.) Factorization by grouping
(e.) Removal of brackets
(f.) Substitution and evaluation
(g.) Problem solving in real life situations.
Content
(a.) Fractions and decimals
(b.) Recurring decimals
(c.) Recurring decimals and fractions
(d.) Decimal places
(e.) Standard form
(f.) Operations on decimals
(g.) Order of operations
(h.) Real life problems involving decimals.
Content
(a.) Fractions
(b.) Proper, improper fractions and mixed numbers.
(c.) Conversion of improper fractions to mixed numbers and vice versa.
(d.) Comparing fractions.
(e.) Operations on fractions.
(f.) Order of operations on fractions
(g.) Word problems involving fractions in real life situations.