please answer guys......
Attachments:
Answers
Answered by
0
Answer:
for which class the question is
Answered by
0
answer of q14 is -107/21
14) step 1
-3/7 + 2 can be also written as
-3/7 + 2/1
lcm of 7 and 1 is 7 so,
-3/7 + 2x7/1x7
= -3/7 + 14/7
= -3 + 14/7
= 11/7
step 2
6 2/3 = 20/3 (converted mixed fraction into improper fraction )
11/7-20/3
=lcm of 7 and 3 is 21 so,
33/21 - 140/21
= 33-140/21
= -107
answer of q13- -21/2
-2/3 x 5/7 + 2/9 divided by 1/3 x 6/7
-10/21+2/9x3/1x6/7
-10/21+2/3x6/7
-10/21+4/7
=2/21
RECIPROCAL OF 2/21 IS -21/2
Similar questions