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CBSE Class 7 Answered

Find: (a) 0.8 2 (b) 6.4 4
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

Here, we have to first convert the decimal into whole number by multiplying and dividing it with 10, 100, 1000,… whichever required, according to the no. of places after the decimal point.

(a) 0.8 2

Here there is only 1 place after the decimal point. So, we will multiply and divide by 10.

i.e., 0.8 2 = 2 = 2

= 2

Now, multiply as we multiply fractions

=>

=

= 0.4

(b) 6.4 4

Here also there is only 1 place after the decimal point. So, we will multiply and divide by 10.

i.e., 6.4 4 = 4 = 4

= 4

Now, multiply as we multiply fractions

=>

=

= 1.6

Answered by | 04 Jun, 2014, 03:23: PM
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