Add 27/45 and 27/42, Solve 27/45 + 27/42 as a fraction

Add 27/45 and 27/42

27/45 + 27/42 is 87/70.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
27/45 = 27 × 14/45 × 14 = 378/630
Likewise, for the 2nd fraction, since 42 × 15 = 630,
27/42 = 27 × 15/42 × 15 = 405/630
Add the two like fractions:
378/630 + 405/630 = 378 + 405/630 = 783/630
783/630 simplified gives 87/70
So, 27/45 + 27/42 = 87/70
In mixed form: 117/70

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