add 2/-7 and 11/7. subtract -4/9 from 7/18.
Answers
Answered by
11
Heya ☺
-2/7 + 11/7 = 11-2/7
9/7
◆ 7/18 - (-4/9 )
7/18 + 4/9
7+8/18
15/18
-2/7 + 11/7 = 11-2/7
9/7
◆ 7/18 - (-4/9 )
7/18 + 4/9
7+8/18
15/18
chitta5:
right
Answered by
3
2/7 + 11/7
=_2__+__11=_13_
7 7 7|_7,7___
1,1
answe=13/7 LCM=7×1×1=7
4/9 - 7/8
=__32__-___63 =_31_ 2|_9,8___
72 72 2|__9,4__
2|___9,2_
3 |___9,1 answer=31/72 3|___3,1__
1,1
LCM =2×2×2×3×3×1×1=72
=_2__+__11=_13_
7 7 7|_7,7___
1,1
answe=13/7 LCM=7×1×1=7
4/9 - 7/8
=__32__-___63 =_31_ 2|_9,8___
72 72 2|__9,4__
2|___9,2_
3 |___9,1 answer=31/72 3|___3,1__
1,1
LCM =2×2×2×3×3×1×1=72
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