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Only question one has been solved as an example
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i. 2/1+3/4
First we will take the L.C.M of 1 and 4
LCM of 4 and 1 is 4
2×4/1×4 = 3×1/4×1
8/4+3/4 = 8+3/4=11/4= 2¾
ii. 7/9+1/3
LCM =9
= 7/9+3/9
=10/9
=1 1/9
iii. 1-4/7
=7-4/7
=3/7
iv. = 8/3+ 1/2
= 8×2/3×2 + 1×3/2×3
= 16/6+3/6
=(16+3)/6
=19/6 = 3 ⅙
v. 5/8-1/6
= 5×3/ 8×3 - 1×4/6×4
= 15/24 - 4/24
=15-4/24
= 11/24
vi. 8/3 + 7/2
= 8×2/3×2 + 7×3/2×3
= 16/6 + 21/6
= (16+21)/6
= 37/6 = 6 ⅙
Step-by-step explanation:
Hope it helps.
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