Question

7/8+3/10+(-5/8)+(-7/20)​

Answer 1

Answer:

             $\frac{1}{5}$

Step-by-step explanation:

7/8 + 3/10 - 5/8 - 7/20     { :plus minus equal to minus}     {: + (-) = - }

now, on taking L.C.M of 8 , 10 , 20 we get,

                     L.C.M(8, 10 ,20) = 40

35/40 + 12/40 - 25/40 - 14/40 = 47/40 - 39/40 = 8/40 = 1/5

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