Math, asked by abiraja7463, 1 year ago

What is the LCM of 0.72,1.2 and 2.24?

Answers

Answered by shoaibahmad131
8

We can write these ratios as following

0.72 = 0.72 ( 2 decimal point)

1.2    = 1.20 (2 decimal point)

2.24 = 2.24 (2 decimal point)

now

Find the prime factors of 72, 120 and 224

prime factors of 72 are cubes of 2 and 3

72 = 2³ x 3²

prime factors of 120 are cube of 2 ,3 and 5

120 = 2³ x 3 x 5

prime factors of 224 are 2 raise to power 5 multiply by  7

224 = 2⁵ x 7

now

Find the LCM (least common factor)for 72, 120 and 224

LCM = 2⁵ x 3²  x 5 x 7

least common factor        (lcm) = 10080

Find the LCM for 0.72, 1.20 and 2.24

*Note that all are 2 decimal places

that's why we will divide 10080 by 100

LCM = 10080 ÷ 100

  LCM   = 100.8

LCM  (least common factor) is (100.8)


Answered by TooFree
9

Write  in like decimals:

0.72 = 0.72 ( 2 d.p.)

1.2    = 1.20 (2 d.p.)

2.24 = 2.24 (2 d.p.)


Find the prime factors of 72, 120 and 224

72 = 2³ x 3²

120 = 2³ x 3 x 5

224 = 2⁵ x 7


Find the LCM for 72, 120 and 224

LCM = 2⁵ x 3²  x 5 x 7

        = 10080


Find the LCM for 0.72, 1.20 and 2.24

*Note that all are 2 decimal places

LCM = 10080 ÷ 100

       = 100.8


Answer: The LCM is 100.8

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