3/5 + 2/7 =
please say the answer with explaination
Answers
Answer:
0.88571428571
I think this question answer
Answer:
31/35=0.88571428571
Step-by-step explanation:
Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
{Find the prime factorization of 5
5 = 5
Find the prime factorization of 7
7 = 7
Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 5 × 7
LCM = 35}
Next, find the equivalent fraction of both fractional numbers with denominator 35
For the 1st fraction, since 5 × 7 = 35,
3
5
=
3 × 7
5 × 7
=
21
35
Likewise, for the 2nd fraction, since 7 × 5 = 35,
2
7
=
2 × 5
7 × 5
=
10
35
Add the two like fractions:
21
35
+
10
35
=
21 + 10
35
=
31
35
So, 3/5 + 2/7 = 31/35
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