13 and 13/ 35
We have been given that
5(4/7) − 2 (2/5)
Simplify the equation
= (5 -2 )×(4/7-2/5)
Solving the whole number parts
5−2=3 (it is equation 1)
Solving the fraction parts
4/7 − 2/5 = ?
Find the LCM of 4/7 and 2/5 and rewrite to solve with the equivalent fractions.
LCM = 35
(20-14)/35 = 6/35 (it is equation 2)
Combine bothe equation 1 And equation 2
=3(6/35)
=111/35
=13 and 13/35
Solution by Formulas (Second method)
Convert any mixed numbers to fractions.
Then your initial equation becomes:
39/7 + −12/5
Applying the fractions formula for addition,
=(39×5)+(−12×7)/7×5
=195 + −84/35
= 111/35
=13 ,13/35
Hence the answer is option 4 i.e. (13,13/35).
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