2. Express 0.6 + 0. 7̅ + 0.47̅ in the form p
q
.
Answers
Answered by
233
If your question is 0.6 + 0.7 + 0.47,this is the answer.
→ 0.6 + 0.7 + 0.47
→ 6/10 + 7/10 + 47/100
→ (60+70+47)/100
→ 177/100
==========================
If your question is 0.6 + 0.7(bar on 7) + 0.47(bar on 47),this is the answer.
First let's solve:-
0.7 (bar on 7)
Let x = 0.7(bar on 7)
x = 0.7777..... -------(1)
10×x = 10×0.7777...10x = 7.7777.... ------(2)
(2) - (1)
10x = 7.7777...
– x = 0.7777...
-------------------
9x = 7
x = 7/9
0.7(bar on 7) = 7/9
Now, solve 0.47 (bar on 47)
Let y = 0.47 (bar on 47)
y = 0.4747... ------(1)
100 × y = 100 × 0.4747...
100y = 47.4747.. -----(2)
(2) - (1)
100y = 47.4747...
–– y = 0.4747...
-------------------------
99y = 47
y = 47/99
0.47 (bar on 47) = 47/99
=======================
0.6 + 0.7(bar on 7) + 0.47(bar on 47)
→ 6/10 + 7/9 + 47/99
→ LCM is 990
→ 6/10×99/99 + 7/9×110/110 + 47/99×10/10
→ 594/990 + 770/990 + 470/990
→ (594+770+470)/990
→ 1834/990
→ 917/495
It's written in p/q form.
Hope it helps
→ 0.6 + 0.7 + 0.47
→ 6/10 + 7/10 + 47/100
→ (60+70+47)/100
→ 177/100
==========================
If your question is 0.6 + 0.7(bar on 7) + 0.47(bar on 47),this is the answer.
First let's solve:-
0.7 (bar on 7)
Let x = 0.7(bar on 7)
x = 0.7777..... -------(1)
10×x = 10×0.7777...10x = 7.7777.... ------(2)
(2) - (1)
10x = 7.7777...
– x = 0.7777...
-------------------
9x = 7
x = 7/9
0.7(bar on 7) = 7/9
Now, solve 0.47 (bar on 47)
Let y = 0.47 (bar on 47)
y = 0.4747... ------(1)
100 × y = 100 × 0.4747...
100y = 47.4747.. -----(2)
(2) - (1)
100y = 47.4747...
–– y = 0.4747...
-------------------------
99y = 47
y = 47/99
0.47 (bar on 47) = 47/99
=======================
0.6 + 0.7(bar on 7) + 0.47(bar on 47)
→ 6/10 + 7/9 + 47/99
→ LCM is 990
→ 6/10×99/99 + 7/9×110/110 + 47/99×10/10
→ 594/990 + 770/990 + 470/990
→ (594+770+470)/990
→ 1834/990
→ 917/495
It's written in p/q form.
Hope it helps
Answered by
18
Answer:
here is the answer above picture shows the answer is systematic form
Attachments:
Similar questions