Simplify 31 2 - 21 3 11 4 3 5 - JAMB Mathematics 2005 Question
Simplify 31/2 - (21/3 * 11/4) + 3/5
A
211/60
B
21/60
C
111/60
D
11/60
correct option: c
31/2 - (21/3 * 11/4) + 3/5
= 7/2 - (7/3 * 5/4) + 3/5
= 7/2 - 35/12 + 3/5
= L.C.M = 60
= (210 - 175 + 36)/60
= 71/60
= 111/60
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