Add 27/42 and 42/90, Solve 27/42 + 42/90 as a fraction

Add 27/42 and 42/90

27/42 + 42/90 is 233/210.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
27/42 = 27 × 15/42 × 15 = 405/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630
Add the two like fractions:
405/630 + 294/630 = 405 + 294/630 = 699/630
699/630 simplified gives 233/210
So, 27/42 + 42/90 = 233/210
In mixed form: 123/210

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