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Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Fractions

Grade Lesson s1-p2

Explanation: The best way to understand PSAT-4 is by looking at some examples. Take turns and read each example for easy understanding.

Examples

Topics → Definition Example1 Example2

Multiplication \$5 28/14\$ × \$3 24/16\$.

Step: 1

Firstly, convert the given mixed fractions into improper fractions, i.e., multiply the denominator with the whole number and then add the resultant to the numerator.
⇒ \$5 28/14\$ = \$98/14\$
⇒ \$3 24/16\$ = \$72/16\$
Multiply the two improper fractions - \$98/14\$ × \$72/16\$.
After multiplying the numerators and denominators, get 7056 and 224 respectively.

$1a$

Explanation:

In this step, convert the mixed fractions to improper fractions: \$5 28/14\$ = \$98/14\$ and \$3 24/16\$ = \$72/16\$. Then multiply the two improper fractions: \$98/14\$ × \$72/16\$ = \$7056/224\$.

Step: 2

Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 112. This gives us: \$63/2\$.
Next, convert the improper fraction to a mixed number: \$31 1/2\$.

$2a$

Explanation:

In this step, simplify the fraction, and divide both the numerator and denominator by their greatest common factor to get \$63/2\$, which can be represented as the mixed fraction \$31 1/2\$.