SaiBook.us Math

Home Course Section Lesson

Lesson Topics Discussion Quiz: Class Homework

Definition1

Title: Decimal Equivalent Fraction

Grade Lesson s2-l3

Explanation: The best way to understand SAT-4 is by looking at some definitions. Take turns and read each definition for easy understanding.

Definition

Topics → Definition Example1

Definition: Decimal Number

Decimals are one type of number, with a whole number and the fractional part separated by a decimal point.
The dot present between the whole number and fractions part is called the decimal point.

$1$

. https://uat-image.saibook.org/edu/math/psat/v4/psat-core/s2/l3/definition/1.jpg

Explanation:

25.36 is a decimal number.Here 25 is a whole number part, and 36 is the fractional part.

Definition: Order of Operations

The order of operations in math, commonly known as PEMDAS in the US, dictates the proper sequence for solving equations: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.

$2$

. https://uat-image.saibook.org/edu/math/psat/v4/psat-core/s2/l3/definition/2.jpg

Explanation:

\$(3/5) − (2/6) + (7/4)\$ In the above equation, first, we perform the addition operation \$(3/5) + (7/4) = 47/20\$ and then subtraction \$(47/20) − (2/6) = 121/60\$ and then convert decimal number \$121 ÷ 60\$ = 2.01.