To convert fraction into decimals, we have to divide numerator by denominator

Multiples of 12 = 12,24,36,48,60,72,84,96,108,120,132,144,156
Factors of 13 = 13,26,39,52,65,78,91,104,117,130,143,156
Least common multiple = 156

Product of two different signs is negative
+5 x (-4)= -20

To convert into decimal, first we have to convert mixed fraction into improper fraction and then we have to divide numerator by denominator.
1 3/8 = 11/8 = 1.375

Prime factorization of 54- 2x3x3x3
Prime Factorization of 48- 2x2x2x2x3
By prime factorization , LCM (54,48 ) = 2x2x2x2x3x3x3 = 432

Reciprocal of a number is figured out by reversing the numerator and the denominator

7/11 is greater fraction than 2/7. So this is the correct option

To find the decimal, we have to divide numerator by denominator.
¾ = 0.75

4m+3 = 4x5 +3 = 20+3 = 23
23 not equals to 24

Arranging in ascending order: 1,2,3,5,6,8,9
Middle number is : 5

The Absolute values of a number is its distance from zero on a number line. So the absolute value of -23 and 23 are exactly same

Heptagon has 7 sides

4/5 ÷ 8/25
First, To divide fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction and then multiply the two numerators. Then, multiply the two denominators.
= 4/5 x 25/8 = 5/2

First we have to convert mixed fractions into improper fraction and then divide the numerator by denominator.
1 9/8 = 17/8 = 2.125

1.2 = 12/10 =(12/2)/(10/2)= 6/5