please answer these questions.
its very important....
its not my test but my worksheets
please help me.
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please answer these questions.
its very important....
its not my test but my worksheets
please help me.
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Answer:
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Answer:
1) 1/3+2/6+1/9
=Lcm of 3,6,9 is 18
=1×6/3×6+2×3/6×3+1×2/9×2
=6+6+2
18
14/18
2) 2/5+1/8+2/10
=Lcm of 5,8,and 10 is 40
=2×8/5×8+1×5/8×5+2×4/10×4
= 16+5+8
40
29/40
3) 3/10-1/15
= Lcm of 10 and 15 is 30
= 3×10/10×3-1×2/15×2
=30-2
30
28/30
4) 4/6+2/5-1/8
=Lcm of 6,5 and 8 is 240
=4×40/6×40+2×48/5×48-1×30/8×30
=160+96-30
240
=226/240