Solve it!
3/8+ -5/2 + 3/7 + 3/12 + -5/8 + -2/7
Answer - 23/84
Provide me proper explanation!
Thanks in advance!
Answers
Answered by
6
3/8+(-5/8)+3/7+(-2/7)+3/12+(-5/2)
=[3/8-5/8]+[3/7-2/7]+1/4-5/2
{since + ×- =-
3/12 =3/(3×4)=1/4}
=(3-5)/8+(3-2)/7 +(1-10)/4
=-2/8+1/7-9/4
=-1/4+1/7-9/4
=(-1/4-9/4)+1/7
=(-1-9)/4+1/7
=-10/4+1/7
=-5/2+1/7
lcm of 2and 7 =14
=(-35+2)/14
=-33/14
=[3/8-5/8]+[3/7-2/7]+1/4-5/2
{since + ×- =-
3/12 =3/(3×4)=1/4}
=(3-5)/8+(3-2)/7 +(1-10)/4
=-2/8+1/7-9/4
=-1/4+1/7-9/4
=(-1/4-9/4)+1/7
=(-1-9)/4+1/7
=-10/4+1/7
=-5/2+1/7
lcm of 2and 7 =14
=(-35+2)/14
=-33/14
mysticd:
verify u'r answer durag
Sir ans in book is 23/84
And it was solved by my math teacher...but i didn,t write that time....so i want ans again
check the operations, + or - symbols
sorry ur ans is correct but my qn was wrong....i m asking another qn ....plz answer it ASAP
:)
thank you ma'am
Answered by
1
Hi friend, Here is the required answer:-
3/8+(-5/12) +3/7+3/12+(-5/8)+(-2/7)
Rearranging the terms,
3/8-5/8-5/12+3/12+3/7-2/7
-2/8 -2/12 +1/7
-42-28+24/ 168
-70+24/ 168
-46/ 168
-23/ 84.
Hope this helps you....
3/8+(-5/12) +3/7+3/12+(-5/8)+(-2/7)
Rearranging the terms,
3/8-5/8-5/12+3/12+3/7-2/7
-2/8 -2/12 +1/7
-42-28+24/ 168
-70+24/ 168
-46/ 168
-23/ 84.
Hope this helps you....
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