B : First Brackets i.e. () [] are cleared
O : Next 'of' is cleared
D : Next Division
M :Next Multiplication
A: Then Addition
S : Finally Subtration is evaluated
Eg 1 :
(5103+2696+3865)÷324=?
First Bracket is cleared
=11664 / 324
= 36
Tip: When Division or Multiplication is given Then...Start from Left to right !
Eg 2) 84 ÷ 4 x 0.45 + 18.5 - 2.95 = ?
First division is cleared and start from left
84/4 x 0.45 + 18.5 - 2.95 = ?
Then Multiplication is cleared
21 x 0.45 + 18.5 - 2.95 = ?
Then do addition
9.45 + 18.5 - 2.95 = ?
Finally do Subtraction
27.95 - 2.95 = ?
Answer is 25
For example :
1 3/4 means One and three-quarters.
Convert into Improper Fraction such as 7/4 or 4/3 ...That is seven fourths or seven quarters;
Follow three steps while simplifing mixed fractions.
Step 1: Convert into Improper fraction
Step 2: Add them using addition operation
Step 3: Finally back to mixed fractions
Eg 3 :
For making common denominator convert 7/2 into 14/4 So that Common Denominator is 4;
Finally Convert into mixed fraction
Tip : Above steps are applicable mixed fraction!
Eg 3 :
For making common denominator convert 63/4 into 189/12 and 53/6 into 106/12 So that Common Denominator is 12; Then do subtract operation.
Subtraction of mixed fraction from whole number!
Eg 4:
40/8 same as 40 divide by 8 which is 5.
Or Simply 5 x 8 – 3 (40-3) 37 So that 37/ 8
1)40 ÷ 0.80 ÷ 0.20 = ?
2)85.3 - 5.07 - 14.008 =?
3)1 1/2 + 3 1/2=
4)5 1/2 - 4 1/2 =
5)10 - 5 1/2
Answers:
1) 250;
2) 66.222 (first add all negative values (-5.07 + -14.008) then subtract from positive value i.e. 85.3);
3) 5;
4) 1;
5) 9/2 or 4 1/2
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