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CBSE Class 10 Answered

1. Express the following numbers in the form 𝑝/𝑞 and reduce it to the lowest terms a) 0.99 (bar on last digit 9 only) b) 0.910 (bar on 10 only) c) 0.46 (bar on 6 only)  d) 0.91 (bar on 1 only) e) 0.72 (bar on 7 only) 2. Express the following numbers in the form 𝑝/𝑞 and reduce it to the lowest terms a) (-0.345)    b) (-0.0030)   c) 0.00106   d) 0.00050     e) (-0.0038)         f) 4.85 
Asked by prakash.sanyasi | 23 Jul, 2019, 04:44: PM
answered-by-expert Expert Answer
c) 0.46 (bar on 6 only) 
Let begin mathsize 16px style straight x equals 0.4 6 with bar on top end style
10x = begin mathsize 16px style 4.6 with bar on top end style .....(i)
100x = begin mathsize 16px style 46.6 with bar on top end style ....(ii)
Subtracting (i) from (ii)
90x = 42
x = 42/90 = 21/45
Answered by Sneha shidid | 24 Jul, 2019, 09:56: AM
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