Verify the following-
(1). (-5/9)+7/21=7/21+(-5/9)
(2). (3/4+9/8)+7/5=3/4+(9/8+7/5)
(3). [(-15/23)+(-6/11)]+10=(-15/3)+[(-6/11)+10]
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Answers
Answered by
5
(1) -35+21/63=21-35/63
=-14/63= -14/63
=0
(2) 6+9/8+7/5=3/4+45+56/40
=15/8+7/5=3/4+101/40
=75+56/40=30+101/40
=131/40 =131/40
=0
Answered by
4
Step-by-step explanation:
(1) -5/9+7/12 = 7/12+(-5/9)
-35+21/63 = 7/12-5/9. (verified commutat
-14/63. = 21-35/63. ive property over
= -14/63. addition)
(2) (3/4+9/8)+7/5 = 3/4 +(9/8+7/5)
6+9/8 +7/5. = 3/4+45+56/40
15/8+7/5. = 3/4+101/40
75+56/40. = 30+101/40
131/40. = 131/40
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