Question

Evalute (2/11x-22/15)+(-1/6x3/4)+(-1/21x-3/5)

Answer 1

Hi
(2/11×-22/15 ) first part
2/1×2/15= -4/15
(-1/6×3/4) second part
-1/2×1×4 = -1/8
(-1/21 × -3/5)
-1/7×-1/5 = -1/35

-4/15+(-1/8)+(-1/35) lcm of 15,8,35 = 840.
(-4×56/15×56)+(-1×105/8×105)+(-1×24/35×24)
-224/840 +(-105/840)+(-24/840) = -353/840

the answer is -353/840

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