explain the anwer plz
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A) Reciprocal of 7/25 = 25/7
therefore multiplying 21/5 and 25/7 = 525/35 =15
B) Additive inverse of 5/6 is -5/6
Additive inverse of a no. is the no. which make it zero for eg 5/6-5/6 =0
Now , -5/7×14/15 = -2/3
Multiplicative inverse of -2/3 is 3/-2
Now Multiplicative inverse of no. is the no. which the value 1 like -2/3×3/-2 = 1
Now by subtracting -5/6 -(3/-2)
We get 4/6= 2/3
C) Here I am using DMAS means first divide then multiple then add and then subtract
So, -3/14 × 4/11 -2/7 × -4/11 -5/11
= -12/154 - (-8)/77 - 5/11
= 12/154 + 8/77 - 5/11
= 12 + 16 - 70 / 154
= 28-70 /154
= - 42/ 154
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