**How to find lcm of two numbers in decimal :**

The smallest among the common multiples of two or more numbers is called their least common multiple ( LCM)

To find the hcf of the decimal numbers, we have to follow the steps given below.

**Step 1 :**

If necessary, make the same number of decimal places in all the given numbers.

**Step 2 :**

Find their lcm as if they were integers

**Step 3 :**

Mark in the result as many decimal places as there are in each of the numbers.

**Question 1 :**

Find the highest common factor of 0.90 and 0.30

**Solution :**

To find the highest common factors of 0.90 and 0.30, first we have to multiply each decimal number by 100.

0.90 x 100 = 90

0.30 x 100 = 30

H.C.F of 90 and 30 = 90

Divide the lcm (90) by 100.

H.C.F of 0.90 and 0.30 = 90/100 = 0.09

**Question 2 :**

Find the highest common factor of 0.36 and 0.27

**Solution :**

To find the highest common factors of 0.36 and 0.27, first we have to multiply each decimal number by 100.

0.36 x 100 = 36

0.27 x 100 = 27

L.C.M of 36 and 27 = 108

Divide the lcm (108) by 100.

H.C.F of 0.36 and 0.27 = 108/100 = 1.08

**Question 3 :**

Find the highest common factor of 75 and 45.

**Solution :**

To find the highest common factors of 0.75 and 0.45, first we have to multiply each decimal number by 100.

0.75 x 100 = 75

0.45 x 100 = 45

L.C.M of 75 and 45 = 225

Divide the lcm (225) by 100.

H.C.F of 0.75 and 0.45 = 225/100 = 2.25

**Question 4 :**

Find the highest common factor of 36 and 72.

**Solution :**

To find the highest common factors of 0.36 and 0.72, first we have to multiply each decimal number by 100.

0.36 x 100 = 36

0.72 x 100 = 72

H.C.F of 36 and 72 = 12

Divide the hcf (144) by 100.

H.C.F of 0.36 and 0.72 = 144/100 = 1.44

**Question 5 :**

Find the highest common factor of 72 and 63.

**Solution :**

To find the highest common factors of 0.72 and 0.63, first we have to multiply each decimal number by 100.

0.72 x 100 = 72

0.63 x 100 = 63

L.C.M of 72 and 63 = 504

Divide the lcm (504) by 100.

H.C.F of 0.72 and 0.63 = 504/100 = 5.04

After having gone through the stuff given above, we hope that the students would have understood "How to find lcm of two numbers in decimal".

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